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-rw-r--r--pkgs/development/compilers/asn1c/default.nix2
-rw-r--r--pkgs/development/compilers/chicken/default.nix2
-rw-r--r--pkgs/development/compilers/clean/default.nix2
-rw-r--r--pkgs/development/compilers/colm/default.nix2
-rw-r--r--pkgs/development/compilers/gforth/default.nix2
-rw-r--r--pkgs/development/compilers/mercury/default.nix2
-rw-r--r--pkgs/development/compilers/mono/generic-cmake.nix2
-rw-r--r--pkgs/development/compilers/mono/generic.nix2
-rw-r--r--pkgs/development/compilers/nasm/default.nix2
-rw-r--r--pkgs/development/compilers/nvidia-cg-toolkit/default.nix2
-rw-r--r--pkgs/development/compilers/ocaml/3.10.0.nix2
-rw-r--r--pkgs/development/compilers/ocaml/3.11.2.nix2
-rw-r--r--pkgs/development/compilers/ocaml/3.12.1.nix2
-rw-r--r--pkgs/development/compilers/ocaml/4.00.1.nix2
-rw-r--r--pkgs/development/compilers/ocaml/ber-metaocaml-104.nix2
-rw-r--r--pkgs/development/compilers/pakcs/default.nix2
-rw-r--r--pkgs/development/compilers/scala/2.10.nix2
-rw-r--r--pkgs/development/compilers/scala/2.11.nix2
-rw-r--r--pkgs/development/compilers/scala/default.nix2
-rw-r--r--pkgs/development/compilers/yap/default.nix2
-rw-r--r--pkgs/development/compilers/yasm/default.nix2
-rw-r--r--pkgs/development/interpreters/lua-4/default.nix2
-rw-r--r--pkgs/development/interpreters/lua-5/5.0.3.nix2
-rw-r--r--pkgs/development/interpreters/lua-5/5.1.nix2
-rw-r--r--pkgs/development/interpreters/lua-5/5.2.nix2
-rw-r--r--pkgs/development/interpreters/picolisp/default.nix2
-rw-r--r--pkgs/development/interpreters/pyrex/0.9.5.nix2
-rw-r--r--pkgs/development/interpreters/pyrex/0.9.6.nix2
-rw-r--r--pkgs/development/interpreters/rascal/default.nix2
-rw-r--r--pkgs/development/libraries/CoinMP/default.nix2
-rw-r--r--pkgs/development/libraries/SDL/default.nix2
-rw-r--r--pkgs/development/libraries/SDL2/default.nix2
-rw-r--r--pkgs/development/libraries/SDL2_image/default.nix2
-rw-r--r--pkgs/development/libraries/SDL2_mixer/default.nix2
-rw-r--r--pkgs/development/libraries/SDL2_net/default.nix2
-rw-r--r--pkgs/development/libraries/SDL_gfx/default.nix2
-rw-r--r--pkgs/development/libraries/SDL_image/default.nix2
-rw-r--r--pkgs/development/libraries/SDL_sound/default.nix2
-rw-r--r--pkgs/development/libraries/SDL_ttf/default.nix2
-rw-r--r--pkgs/development/libraries/adns/default.nix2
-rw-r--r--pkgs/development/libraries/aubio/default.nix2
-rw-r--r--pkgs/development/libraries/audio/lilv/default.nix2
-rw-r--r--pkgs/development/libraries/audio/sratom/default.nix2
-rw-r--r--pkgs/development/libraries/audio/suil/default.nix2
-rw-r--r--pkgs/development/libraries/audiofile/default.nix2
-rw-r--r--pkgs/development/libraries/babl/default.nix2
-rw-r--r--pkgs/development/libraries/c-ares/default.nix2
-rw-r--r--pkgs/development/libraries/cairo/default.nix2
-rw-r--r--pkgs/development/libraries/cairomm/default.nix2
-rw-r--r--pkgs/development/libraries/cppunit/default.nix2
-rw-r--r--pkgs/development/libraries/ctpl/default.nix2
-rw-r--r--pkgs/development/libraries/db/generic.nix2
-rw-r--r--pkgs/development/libraries/dbus/default.nix2
-rw-r--r--pkgs/development/libraries/eigen/2.0.nix2
-rw-r--r--pkgs/development/libraries/eigen/3.3.nix2
-rw-r--r--pkgs/development/libraries/eigen/default.nix2
-rw-r--r--pkgs/development/libraries/exempi/default.nix2
-rw-r--r--pkgs/development/libraries/gdal/default.nix2
-rw-r--r--pkgs/development/libraries/gdal/gdal-1_11.nix2
-rw-r--r--pkgs/development/libraries/gegl/3.0.nix2
-rw-r--r--pkgs/development/libraries/gegl/4.0.nix2
-rw-r--r--pkgs/development/libraries/geoclue/2.0.nix2
-rw-r--r--pkgs/development/libraries/geos/default.nix2
-rw-r--r--pkgs/development/libraries/gf2x/default.nix2
-rw-r--r--pkgs/development/libraries/gle/default.nix2
-rw-r--r--pkgs/development/libraries/gloox/default.nix2
-rw-r--r--pkgs/development/libraries/gtdialog/default.nix2
-rw-r--r--pkgs/development/libraries/harfbuzz/default.nix2
-rw-r--r--pkgs/development/libraries/ip2location-c/default.nix2
-rw-r--r--pkgs/development/libraries/isl/0.11.1.nix2
-rw-r--r--pkgs/development/libraries/java/dbus-java/default.nix2
-rw-r--r--pkgs/development/libraries/java/geoipjava/default.nix2
-rw-r--r--pkgs/development/libraries/java/libmatthew-java/default.nix2
-rw-r--r--pkgs/development/libraries/jbigkit/default.nix2
-rw-r--r--pkgs/development/libraries/libLAS/default.nix2
-rw-r--r--pkgs/development/libraries/libabw/default.nix2
-rw-r--r--pkgs/development/libraries/libantlr3c/default.nix2
-rw-r--r--pkgs/development/libraries/libaudclient/default.nix2
-rw-r--r--pkgs/development/libraries/libbsd/default.nix2
-rw-r--r--pkgs/development/libraries/libcdr/default.nix2
-rw-r--r--pkgs/development/libraries/libclthreads/default.nix2
-rw-r--r--pkgs/development/libraries/libclxclient/default.nix2
-rw-r--r--pkgs/development/libraries/libcutl/default.nix2
-rw-r--r--pkgs/development/libraries/libdap/default.nix2
-rw-r--r--pkgs/development/libraries/libdivecomputer/default.nix2
-rw-r--r--pkgs/development/libraries/libdrm/default.nix2
-rw-r--r--pkgs/development/libraries/libdwarf/default.nix2
-rw-r--r--pkgs/development/libraries/libeatmydata/default.nix2
-rw-r--r--pkgs/development/libraries/libebml/default.nix2
-rw-r--r--pkgs/development/libraries/libedit/default.nix2
-rw-r--r--pkgs/development/libraries/libexttextcat/default.nix2
-rw-r--r--pkgs/development/libraries/libfakekey/default.nix2
-rw-r--r--pkgs/development/libraries/libftdi/1.x.nix2
-rw-r--r--pkgs/development/libraries/libftdi/default.nix2
-rw-r--r--pkgs/development/libraries/libgdiplus/default.nix2
-rw-r--r--pkgs/development/libraries/libgeotiff/default.nix2
-rw-r--r--pkgs/development/libraries/libgig/default.nix2
-rw-r--r--pkgs/development/libraries/libinput/default.nix2
-rw-r--r--pkgs/development/libraries/libmatchbox/default.nix2
-rw-r--r--pkgs/development/libraries/libmatheval/default.nix2
-rw-r--r--pkgs/development/libraries/libmatroska/default.nix2
-rw-r--r--pkgs/development/libraries/libmnl/default.nix2
-rw-r--r--pkgs/development/libraries/libmpcdec/default.nix2
-rw-r--r--pkgs/development/libraries/libmrss/default.nix2
-rw-r--r--pkgs/development/libraries/libmspack/default.nix2
-rw-r--r--pkgs/development/libraries/libmysqlconnectorcpp/default.nix2
-rw-r--r--pkgs/development/libraries/libnetfilter_cthelper/default.nix2
-rw-r--r--pkgs/development/libraries/libnfnetlink/default.nix2
-rw-r--r--pkgs/development/libraries/libnice/default.nix2
-rw-r--r--pkgs/development/libraries/libnxml/default.nix2
-rw-r--r--pkgs/development/libraries/libpcap/default.nix2
-rw-r--r--pkgs/development/libraries/libplist/default.nix2
-rw-r--r--pkgs/development/libraries/libraw/default.nix2
-rw-r--r--pkgs/development/libraries/librep/default.nix2
-rw-r--r--pkgs/development/libraries/libspatialindex/default.nix2
-rw-r--r--pkgs/development/libraries/libspatialite/default.nix2
-rw-r--r--pkgs/development/libraries/libspectre/default.nix2
-rw-r--r--pkgs/development/libraries/libstatgrab/default.nix2
-rw-r--r--pkgs/development/libraries/libtiff/default.nix2
-rw-r--r--pkgs/development/libraries/libtsm/default.nix2
-rw-r--r--pkgs/development/libraries/libtxc_dxtn/default.nix2
-rw-r--r--pkgs/development/libraries/libusbmuxd/default.nix2
-rw-r--r--pkgs/development/libraries/libva/1.0.0.nix2
-rw-r--r--pkgs/development/libraries/libvirt-glib/default.nix2
-rw-r--r--pkgs/development/libraries/libx86/default.nix2
-rw-r--r--pkgs/development/libraries/libxcomp/default.nix2
-rw-r--r--pkgs/development/libraries/libyaml/default.nix2
-rw-r--r--pkgs/development/libraries/libzdb/default.nix2
-rw-r--r--pkgs/development/libraries/loudmouth/default.nix2
-rw-r--r--pkgs/development/libraries/mdds/0.12.1.nix2
-rw-r--r--pkgs/development/libraries/mdds/default.nix2
-rw-r--r--pkgs/development/libraries/mpich2/default.nix2
-rw-r--r--pkgs/development/libraries/opendbx/default.nix2
-rw-r--r--pkgs/development/libraries/openldap/default.nix2
-rw-r--r--pkgs/development/libraries/openssl/default.nix2
-rw-r--r--pkgs/development/libraries/physics/cernlib/default.nix2
-rw-r--r--pkgs/development/libraries/physics/fastnlo/default.nix2
-rw-r--r--pkgs/development/libraries/physics/herwig/default.nix2
-rw-r--r--pkgs/development/libraries/physics/lhapdf/default.nix2
-rw-r--r--pkgs/development/libraries/physics/mcgrid/default.nix2
-rw-r--r--pkgs/development/libraries/physics/nlojet/default.nix2
-rw-r--r--pkgs/development/libraries/physics/rivet/default.nix2
-rw-r--r--pkgs/development/libraries/physics/thepeg/default.nix2
-rw-r--r--pkgs/development/libraries/physics/yoda/default.nix2
-rw-r--r--pkgs/development/libraries/polkit/default.nix2
-rw-r--r--pkgs/development/libraries/postgis/default.nix2
-rw-r--r--pkgs/development/libraries/proj/default.nix2
-rw-r--r--pkgs/development/libraries/rabbitmq-java-client/default.nix2
-rw-r--r--pkgs/development/libraries/readosm/default.nix2
-rw-r--r--pkgs/development/libraries/rep-gtk/default.nix2
-rw-r--r--pkgs/development/libraries/schroedinger/default.nix2
-rw-r--r--pkgs/development/libraries/science/math/ipopt/default.nix2
-rw-r--r--pkgs/development/libraries/science/math/magma/default.nix2
-rw-r--r--pkgs/development/libraries/serd/default.nix2
-rw-r--r--pkgs/development/libraries/shapelib/default.nix2
-rw-r--r--pkgs/development/libraries/slang/default.nix2
-rw-r--r--pkgs/development/libraries/slib/default.nix2
-rw-r--r--pkgs/development/libraries/snack/default.nix2
-rw-r--r--pkgs/development/libraries/sord/default.nix2
-rw-r--r--pkgs/development/libraries/soundtouch/default.nix2
-rw-r--r--pkgs/development/libraries/spandsp/default.nix2
-rw-r--r--pkgs/development/libraries/spatialite-tools/default.nix2
-rw-r--r--pkgs/development/libraries/spice-gtk/default.nix2
-rw-r--r--pkgs/development/libraries/spice-protocol/default.nix2
-rw-r--r--pkgs/development/libraries/spice/default.nix2
-rw-r--r--pkgs/development/libraries/startup-notification/default.nix2
-rw-r--r--pkgs/development/libraries/strigi/default.nix2
-rw-r--r--pkgs/development/libraries/swiften/default.nix2
-rw-r--r--pkgs/development/libraries/sword/default.nix2
-rw-r--r--pkgs/development/libraries/telepathy/farstream/default.nix2
-rw-r--r--pkgs/development/libraries/telepathy/qt/default.nix2
-rw-r--r--pkgs/development/libraries/thrift/default.nix2
-rw-r--r--pkgs/development/libraries/tre/default.nix2
-rw-r--r--pkgs/development/libraries/ucl/default.nix2
-rw-r--r--pkgs/development/libraries/unicap/default.nix2
-rw-r--r--pkgs/development/libraries/usbredir/default.nix2
-rw-r--r--pkgs/development/libraries/vaapi-vdpau/default.nix2
-rw-r--r--pkgs/development/libraries/vsqlite/default.nix2
-rw-r--r--pkgs/development/libraries/wayland/1.9.nix2
-rw-r--r--pkgs/development/libraries/wayland/protocols.nix2
-rw-r--r--pkgs/development/libraries/webkitgtk/2.20.nix2
-rw-r--r--pkgs/development/libraries/webkitgtk/2.4.nix2
-rw-r--r--pkgs/development/libraries/webrtc-audio-processing/default.nix2
-rw-r--r--pkgs/development/libraries/x264/default.nix2
-rw-r--r--pkgs/development/libraries/xapian/default.nix2
-rw-r--r--pkgs/development/libraries/xapian/tools/omega/default.nix2
-rw-r--r--pkgs/development/libraries/xml-security-c/default.nix2
-rw-r--r--pkgs/development/libraries/xmlsec/default.nix2
-rw-r--r--pkgs/development/libraries/xsd/default.nix2
-rw-r--r--pkgs/development/libraries/zlib/default.nix2
-rw-r--r--pkgs/development/misc/amdapp-sdk/default.nix2
-rw-r--r--pkgs/development/mobile/androidenv/androidsdk.nix2
-rw-r--r--pkgs/development/tools/analysis/egypt/default.nix2
-rw-r--r--pkgs/development/tools/analysis/radare/default.nix2
-rw-r--r--pkgs/development/tools/analysis/radare/ired.nix2
-rw-r--r--pkgs/development/tools/cdecl/default.nix2
-rw-r--r--pkgs/development/tools/devtodo/default.nix2
-rw-r--r--pkgs/development/tools/mdk/default.nix2
-rw-r--r--pkgs/development/tools/misc/babeltrace/default.nix2
-rw-r--r--pkgs/development/tools/misc/cgdb/default.nix2
-rw-r--r--pkgs/development/tools/misc/creduce/default.nix2
-rw-r--r--pkgs/development/tools/misc/csmith/default.nix2
-rw-r--r--pkgs/development/tools/misc/eggdbus/default.nix2
-rw-r--r--pkgs/development/tools/misc/intel-gpu-tools/default.nix2
-rw-r--r--pkgs/development/tools/misc/jscoverage/default.nix2
-rw-r--r--pkgs/development/tools/misc/msitools/default.nix2
-rw-r--r--pkgs/development/tools/misc/patchelf/default.nix2
-rw-r--r--pkgs/development/tools/misc/prelink/default.nix2
-rw-r--r--pkgs/development/tools/nwjs/default.nix2
-rw-r--r--pkgs/development/tools/parsing/antlr/2.7.7.nix2
-rw-r--r--pkgs/development/tools/parsing/antlr/3.4.nix2
-rw-r--r--pkgs/development/tools/parsing/antlr/3.5.nix2
-rw-r--r--pkgs/development/tools/parsing/antlr/4.7.nix2
-rw-r--r--pkgs/development/tools/parsing/ragel/default.nix2
-rw-r--r--pkgs/development/tools/profiling/EZTrace/default.nix2
-rw-r--r--pkgs/development/tools/selenium/chromedriver/default.nix2
-rw-r--r--pkgs/development/tools/tradcpp/default.nix2
-rw-r--r--pkgs/development/web/csslint/default.nix2
218 files changed, 218 insertions, 218 deletions
diff --git a/pkgs/development/compilers/asn1c/default.nix b/pkgs/development/compilers/asn1c/default.nix
index eda895d726a0..ce754813dda1 100644
--- a/pkgs/development/compilers/asn1c/default.nix
+++ b/pkgs/development/compilers/asn1c/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.9.28";
 
   src = fetchurl {
-    url = "http://lionet.info/soft/asn1c-${version}.tar.gz";
+    url = "https://lionet.info/soft/asn1c-${version}.tar.gz";
     sha256 = "1fc64g45ykmv73kdndr4zdm4wxhimhrir4rxnygxvwkych5l81w0";
   };
 
diff --git a/pkgs/development/compilers/chicken/default.nix b/pkgs/development/compilers/chicken/default.nix
index ad9e57f794f0..ceeff56330b2 100644
--- a/pkgs/development/compilers/chicken/default.nix
+++ b/pkgs/development/compilers/chicken/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
   binaryVersion = 8;
 
   src = fetchurl {
-    url = "http://code.call-cc.org/releases/${version}/chicken-${version}.tar.gz";
+    url = "https://code.call-cc.org/releases/${version}/chicken-${version}.tar.gz";
     sha256 = "0hvckhi5gfny3mlva6d7y9pmx7cbwvq0r7mk11k3sdiik9hlkmdd";
   };
 
diff --git a/pkgs/development/compilers/clean/default.nix b/pkgs/development/compilers/clean/default.nix
index 3fed2289f954..16ac8b787219 100644
--- a/pkgs/development/compilers/clean/default.nix
+++ b/pkgs/development/compilers/clean/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
       sha256 = "1w8vvmkwzq8g51639r62apcy75sj69nm08082a34xvqm9ymfgkq5";
     })
     else if stdenv.system == "x86_64-linux" then (fetchurl {
-        url = "http://clean.cs.ru.nl/download/Clean24/linux/clean2.4_64_boot.tar.gz";
+        url = "https://clean.cs.ru.nl/download/Clean24/linux/clean2.4_64_boot.tar.gz";
         sha256 = "08gsa1pjl5wyzh4ah8ccfx8a7mdcn6ycsn1lzkrr9adygv1gmm7r";
     })
     else throw "Architecture not supported";
diff --git a/pkgs/development/compilers/colm/default.nix b/pkgs/development/compilers/colm/default.nix
index ffbe3c5a62f4..61b24a851941 100644
--- a/pkgs/development/compilers/colm/default.nix
+++ b/pkgs/development/compilers/colm/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.13.0.6";
 
   src = fetchurl {
-    url = "http://www.colm.net/files/colm/${name}.tar.gz";
+    url = "https://www.colm.net/files/colm/${name}.tar.gz";
     sha256 = "0jd3qmqdm8yszy0yysbp3syk7pcbxvwzv9mibdwz7v9bv1nrai26";
   };
 
diff --git a/pkgs/development/compilers/gforth/default.nix b/pkgs/development/compilers/gforth/default.nix
index 6ea21207f19f..675522d54ead 100644
--- a/pkgs/development/compilers/gforth/default.nix
+++ b/pkgs/development/compilers/gforth/default.nix
@@ -6,7 +6,7 @@ in
 stdenv.mkDerivation {
   name = "gforth-${version}";
   src = fetchurl {
-    url = "http://ftp.gnu.org/gnu/gforth/gforth-${version}.tar.gz";
+    url = "https://ftp.gnu.org/gnu/gforth/gforth-${version}.tar.gz";
     sha256 = "1c1bahc9ypmca8rv2dijiqbangm1d9av286904yw48ph7ciz4qig";
   };
 
diff --git a/pkgs/development/compilers/mercury/default.nix b/pkgs/development/compilers/mercury/default.nix
index c2352b8126e0..048dd598a480 100644
--- a/pkgs/development/compilers/mercury/default.nix
+++ b/pkgs/development/compilers/mercury/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   version = "14.01.1";
 
   src = fetchurl {
-    url    = "http://dl.mercurylang.org/release/mercury-srcdist-${version}.tar.gz";
+    url    = "https://dl.mercurylang.org/release/mercury-srcdist-${version}.tar.gz";
     sha256 = "12z8qi3da8q50mcsjsy5bnr4ia6ny5lkxvzy01a3c9blgbgcpxwq";
   };
 
diff --git a/pkgs/development/compilers/mono/generic-cmake.nix b/pkgs/development/compilers/mono/generic-cmake.nix
index 929d00491382..c8afd0dcc906 100644
--- a/pkgs/development/compilers/mono/generic-cmake.nix
+++ b/pkgs/development/compilers/mono/generic-cmake.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     inherit sha256;
-    url = "http://download.mono-project.com/sources/mono/${name}.tar.bz2";
+    url = "https://download.mono-project.com/sources/mono/${name}.tar.bz2";
   };
 
   buildInputs =
diff --git a/pkgs/development/compilers/mono/generic.nix b/pkgs/development/compilers/mono/generic.nix
index a62f2f24dd87..e39de76117af 100644
--- a/pkgs/development/compilers/mono/generic.nix
+++ b/pkgs/development/compilers/mono/generic.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     inherit sha256;
-    url = "http://download.mono-project.com/sources/mono/${name}.tar.bz2";
+    url = "https://download.mono-project.com/sources/mono/${name}.tar.bz2";
   };
 
   buildInputs =
diff --git a/pkgs/development/compilers/nasm/default.nix b/pkgs/development/compilers/nasm/default.nix
index 1676ce4884d9..a0daa7df1737 100644
--- a/pkgs/development/compilers/nasm/default.nix
+++ b/pkgs/development/compilers/nasm/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.13.03";
 
   src = fetchurl {
-    url = "http://www.nasm.us/pub/nasm/releasebuilds/${version}/${name}.tar.bz2";
+    url = "https://www.nasm.us/pub/nasm/releasebuilds/${version}/${name}.tar.bz2";
     sha256 = "04bh736zfj3xy5ihh1whshpjxsisv7hqkz954clzdw6kg93qdv33";
   };
 
diff --git a/pkgs/development/compilers/nvidia-cg-toolkit/default.nix b/pkgs/development/compilers/nvidia-cg-toolkit/default.nix
index ab71090b3580..9eec23f1ba88 100644
--- a/pkgs/development/compilers/nvidia-cg-toolkit/default.nix
+++ b/pkgs/development/compilers/nvidia-cg-toolkit/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   src =
     if stdenv.system == "x86_64-linux" then
       fetchurl {
-        url = "http://developer.download.nvidia.com/cg/Cg_${version}/Cg-${version}_${date}_x86_64.tgz";
+        url = "https://developer.download.nvidia.com/cg/Cg_${version}/Cg-${version}_${date}_x86_64.tgz";
         sha256 = "e8ff01e6cc38d1b3fd56a083f5860737dbd2f319a39037528fb1a74a89ae9878";
       }
     else if stdenv.system == "i686-linux" then
diff --git a/pkgs/development/compilers/ocaml/3.10.0.nix b/pkgs/development/compilers/ocaml/3.10.0.nix
index ca21612776f0..99a65dec1501 100644
--- a/pkgs/development/compilers/ocaml/3.10.0.nix
+++ b/pkgs/development/compilers/ocaml/3.10.0.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation (rec {
   version = "3.10.0";
 
   src = fetchurl {
-    url = "http://caml.inria.fr/pub/distrib/ocaml-3.10/${name}.tar.bz2";
+    url = "https://caml.inria.fr/pub/distrib/ocaml-3.10/${name}.tar.bz2";
     sha256 = "1ihmx1civ78s7k2hfc05z1s9vbyx2qw7fg8lnbxnfd6zxkk8878d";
   };
 
diff --git a/pkgs/development/compilers/ocaml/3.11.2.nix b/pkgs/development/compilers/ocaml/3.11.2.nix
index df62cd3656b4..e65510c172e6 100644
--- a/pkgs/development/compilers/ocaml/3.11.2.nix
+++ b/pkgs/development/compilers/ocaml/3.11.2.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   version = "3.11.2";
   
   src = fetchurl {
-    url = "http://caml.inria.fr/pub/distrib/ocaml-3.11/${name}.tar.bz2";
+    url = "https://caml.inria.fr/pub/distrib/ocaml-3.11/${name}.tar.bz2";
     sha256 = "86f3387a0d7e7c8be2a3c53af083a5a726e333686208d5ea0dd6bb5ac3f58143";
   };
 
diff --git a/pkgs/development/compilers/ocaml/3.12.1.nix b/pkgs/development/compilers/ocaml/3.12.1.nix
index 8cfe2bb7bcfe..8636f670059c 100644
--- a/pkgs/development/compilers/ocaml/3.12.1.nix
+++ b/pkgs/development/compilers/ocaml/3.12.1.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   version = "3.12.1";
   
   src = fetchurl {
-    url = "http://caml.inria.fr/pub/distrib/ocaml-3.12/${name}.tar.bz2";
+    url = "https://caml.inria.fr/pub/distrib/ocaml-3.12/${name}.tar.bz2";
     sha256 = "13cmhkh7s6srnlvhg3s9qzh3a5dbk2m9qr35jzq922sylwymdkzd";
   };
 
diff --git a/pkgs/development/compilers/ocaml/4.00.1.nix b/pkgs/development/compilers/ocaml/4.00.1.nix
index 8bad5494e8b9..0a30ef1352c4 100644
--- a/pkgs/development/compilers/ocaml/4.00.1.nix
+++ b/pkgs/development/compilers/ocaml/4.00.1.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
   version = "4.00.1";
   
   src = fetchurl {
-    url = "http://caml.inria.fr/pub/distrib/ocaml-4.00/${name}.tar.bz2";
+    url = "https://caml.inria.fr/pub/distrib/ocaml-4.00/${name}.tar.bz2";
     sha256 = "33c3f4acff51685f5bfd7c260f066645e767d4e865877bf1613c176a77799951";
   };
 
diff --git a/pkgs/development/compilers/ocaml/ber-metaocaml-104.nix b/pkgs/development/compilers/ocaml/ber-metaocaml-104.nix
index 81c8cd534025..16d7e2580b38 100644
--- a/pkgs/development/compilers/ocaml/ber-metaocaml-104.nix
+++ b/pkgs/development/compilers/ocaml/ber-metaocaml-104.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   version = "104";
 
   src = fetchurl {
-    url = "http://caml.inria.fr/pub/distrib/ocaml-4.04/ocaml-4.04.0.tar.gz";
+    url = "https://caml.inria.fr/pub/distrib/ocaml-4.04/ocaml-4.04.0.tar.gz";
     sha256 = "1pi2hdm9lxhn45qvfqfss1hpa4jijm14qgmrgajsadxqdiplhqyb";
   };
 
diff --git a/pkgs/development/compilers/pakcs/default.nix b/pkgs/development/compilers/pakcs/default.nix
index d7590146e2ad..94b89cf3a952 100644
--- a/pkgs/development/compilers/pakcs/default.nix
+++ b/pkgs/development/compilers/pakcs/default.nix
@@ -5,7 +5,7 @@ let
   fname = "pakcs-1.14.0";
 
   fsrc = fetchurl {
-    url = "http://www.informatik.uni-kiel.de/~pakcs/download/${fname}-src.tar.gz";
+    url = "https://www.informatik.uni-kiel.de/~pakcs/download/${fname}-src.tar.gz";
     sha256 = "1651ssh4ql79x8asd7kp4yis2n5rhn3lml4s26y03b0cgbfhs78s";
   };
 
diff --git a/pkgs/development/compilers/scala/2.10.nix b/pkgs/development/compilers/scala/2.10.nix
index 86b6a942403b..16e0389ad031 100644
--- a/pkgs/development/compilers/scala/2.10.nix
+++ b/pkgs/development/compilers/scala/2.10.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "scala-2.10.7";
 
   src = fetchurl {
-    url = "http://www.scala-lang.org/files/archive/${name}.tgz";
+    url = "https://www.scala-lang.org/files/archive/${name}.tgz";
     sha256 = "04gi55lzgrhsb78qw8jmnccqim92rw6898knw0a7gfzn2sci30wj";
   };
 
diff --git a/pkgs/development/compilers/scala/2.11.nix b/pkgs/development/compilers/scala/2.11.nix
index 1145ebab5245..b1100eb8aa9d 100644
--- a/pkgs/development/compilers/scala/2.11.nix
+++ b/pkgs/development/compilers/scala/2.11.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "scala-2.11.12";
 
   src = fetchurl {
-    url = "http://www.scala-lang.org/files/archive/${name}.tgz";
+    url = "https://www.scala-lang.org/files/archive/${name}.tgz";
     sha256 = "1a4nc4qp9dm4rps47j92hlmxxqskv67qbdmjqc5zd94wd4rps7di";
   };
 
diff --git a/pkgs/development/compilers/scala/default.nix b/pkgs/development/compilers/scala/default.nix
index 92690649bff6..8a20066becb7 100644
--- a/pkgs/development/compilers/scala/default.nix
+++ b/pkgs/development/compilers/scala/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "scala-2.12.6";
 
   src = fetchurl {
-    url = "http://www.scala-lang.org/files/archive/${name}.tgz";
+    url = "https://www.scala-lang.org/files/archive/${name}.tgz";
     sha256 = "05ili2959yrshqi44wpmwy0dyfm4kvp6i8mlbnj1xvc5b9649iqs";
   };
 
diff --git a/pkgs/development/compilers/yap/default.nix b/pkgs/development/compilers/yap/default.nix
index d93da8cb9965..7c6b545285cc 100644
--- a/pkgs/development/compilers/yap/default.nix
+++ b/pkgs/development/compilers/yap/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "yap-${version}";
 
   src = fetchurl {
-    url = "http://www.dcc.fc.up.pt/~vsc/Yap/${name}.tar.gz";
+    url = "https://www.dcc.fc.up.pt/~vsc/Yap/${name}.tar.gz";
     sha256 = "0y7sjwimadqsvgx9daz28c9mxcx9n1znxklih9xg16k6n54v9qxf";
   };
 
diff --git a/pkgs/development/compilers/yasm/default.nix b/pkgs/development/compilers/yasm/default.nix
index 738b63fe1ad7..5aea623b91d4 100644
--- a/pkgs/development/compilers/yasm/default.nix
+++ b/pkgs/development/compilers/yasm/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "yasm-1.3.0";
 
   src = fetchurl {
-    url = "http://www.tortall.net/projects/yasm/releases/${name}.tar.gz";
+    url = "https://www.tortall.net/projects/yasm/releases/${name}.tar.gz";
     sha256 = "0gv0slmm0qpq91za3v2v9glff3il594x5xsrbgab7xcmnh0ndkix";
   };
 
diff --git a/pkgs/development/interpreters/lua-4/default.nix b/pkgs/development/interpreters/lua-4/default.nix
index 1d94fd33a72c..be49d2dd9215 100644
--- a/pkgs/development/interpreters/lua-4/default.nix
+++ b/pkgs/development/interpreters/lua-4/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "lua-4.0.1";
 
   src = fetchurl {
-    url = http://www.lua.org/ftp/lua-4.0.1.tar.gz;
+    url = https://www.lua.org/ftp/lua-4.0.1.tar.gz;
     sha256 = "0ajd906hasii365xdihv9mdmi3cixq758blx0289x4znkha6wx6z";
   };
 
diff --git a/pkgs/development/interpreters/lua-5/5.0.3.nix b/pkgs/development/interpreters/lua-5/5.0.3.nix
index a9e725f128bc..d343ec6c63b1 100644
--- a/pkgs/development/interpreters/lua-5/5.0.3.nix
+++ b/pkgs/development/interpreters/lua-5/5.0.3.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "lua-5.0.3";
 
   src = fetchurl {
-    url = http://www.lua.org/ftp/lua-5.0.3.tar.gz;
+    url = https://www.lua.org/ftp/lua-5.0.3.tar.gz;
     sha256 = "1193a61b0e08acaa6eee0eecf29709179ee49c71baebc59b682a25c3b5a45671";
   };
 
diff --git a/pkgs/development/interpreters/lua-5/5.1.nix b/pkgs/development/interpreters/lua-5/5.1.nix
index 15077578f27f..271490c99574 100644
--- a/pkgs/development/interpreters/lua-5/5.1.nix
+++ b/pkgs/development/interpreters/lua-5/5.1.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   luaversion = "5.1";
 
   src = fetchurl {
-    url = "http://www.lua.org/ftp/${name}.tar.gz";
+    url = "https://www.lua.org/ftp/${name}.tar.gz";
     sha256 = "2640fc56a795f29d28ef15e13c34a47e223960b0240e8cb0a82d9b0738695333";
   };
 
diff --git a/pkgs/development/interpreters/lua-5/5.2.nix b/pkgs/development/interpreters/lua-5/5.2.nix
index acddbcfd303c..6221bf3fb843 100644
--- a/pkgs/development/interpreters/lua-5/5.2.nix
+++ b/pkgs/development/interpreters/lua-5/5.2.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   version = "${luaversion}.3";
 
   src = fetchurl {
-    url = "http://www.lua.org/ftp/${name}.tar.gz";
+    url = "https://www.lua.org/ftp/${name}.tar.gz";
     sha256 = "0b8034v1s82n4dg5rzcn12067ha3nxaylp2vdp8gg08kjsbzphhk";
   };
 
diff --git a/pkgs/development/interpreters/picolisp/default.nix b/pkgs/development/interpreters/picolisp/default.nix
index e2b64fd4e028..37a5bdd0ce94 100644
--- a/pkgs/development/interpreters/picolisp/default.nix
+++ b/pkgs/development/interpreters/picolisp/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "picoLisp-${version}";
   version = "16.12";
   src = fetchurl {
-    url = "http://www.software-lab.de/${name}.tgz";
+    url = "https://www.software-lab.de/${name}.tgz";
     sha256 = "1k3x6mvk9b34iiyml142bzh3gf241f25ywjlaagbxzb9vklpws75";
   };
   buildInputs = optional stdenv.is64bit jdk;
diff --git a/pkgs/development/interpreters/pyrex/0.9.5.nix b/pkgs/development/interpreters/pyrex/0.9.5.nix
index b67ad3db2ef5..18bc875fb334 100644
--- a/pkgs/development/interpreters/pyrex/0.9.5.nix
+++ b/pkgs/development/interpreters/pyrex/0.9.5.nix
@@ -6,7 +6,7 @@ python2Packages.buildPythonPackage rec {
   name = "pyrex-${version}";
 
   src = fetchurl {
-    url = "http://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/oldtar/Pyrex-${version}.tar.gz";
+    url = "https://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/oldtar/Pyrex-${version}.tar.gz";
     sha256 = "0lxxvn4mjfb83swcbqb5908q4iy53w4ip5i0f9angm2va1jyhd3z";
   };
 
diff --git a/pkgs/development/interpreters/pyrex/0.9.6.nix b/pkgs/development/interpreters/pyrex/0.9.6.nix
index 7a0ac5a1e229..2feb15b647da 100644
--- a/pkgs/development/interpreters/pyrex/0.9.6.nix
+++ b/pkgs/development/interpreters/pyrex/0.9.6.nix
@@ -6,7 +6,7 @@ python2Packages.buildPythonPackage rec {
   name = "pyrex-${version}";
 
   src = fetchurl {
-    url = "http://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/oldtar/Pyrex-${version}.tar.gz";
+    url = "https://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/oldtar/Pyrex-${version}.tar.gz";
     sha256 = "18pd9f8al3l6i27cc0ddhgg7hxf28lnfs75x4a8jzscydxgiq5a8";
   };
 
diff --git a/pkgs/development/interpreters/rascal/default.nix b/pkgs/development/interpreters/rascal/default.nix
index e15e0926aedf..25e125b9af63 100644
--- a/pkgs/development/interpreters/rascal/default.nix
+++ b/pkgs/development/interpreters/rascal/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "rascal-0.6.2";
 
   src = fetchurl {
-    url = "http://update.rascal-mpl.org/console/${name}.jar";
+    url = "https://update.rascal-mpl.org/console/${name}.jar";
     sha256 = "1z4mwdbdc3r24haljnxng8znlfg2ihm9bf9zq8apd9a32ipcw4i6";
   };
 
diff --git a/pkgs/development/libraries/CoinMP/default.nix b/pkgs/development/libraries/CoinMP/default.nix
index ea72bfb434b8..7fecae0a66e7 100644
--- a/pkgs/development/libraries/CoinMP/default.nix
+++ b/pkgs/development/libraries/CoinMP/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.8.3";
 
   src = fetchurl {
-    url = "http://www.coin-or.org/download/source/CoinMP/${name}.tgz";
+    url = "https://www.coin-or.org/download/source/CoinMP/${name}.tgz";
     sha256 = "1xr2iwbbhm6l9hwiry5c10pz46xfih8bvzrzwp0nkzf76vdnb9m1";
   };
 
diff --git a/pkgs/development/libraries/SDL/default.nix b/pkgs/development/libraries/SDL/default.nix
index d40b25cd8040..c7e4a9c29ac8 100644
--- a/pkgs/development/libraries/SDL/default.nix
+++ b/pkgs/development/libraries/SDL/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   version = "1.2.15";
 
   src = fetchurl {
-    url    = "http://www.libsdl.org/release/${name}.tar.gz";
+    url    = "https://www.libsdl.org/release/${name}.tar.gz";
     sha256 = "005d993xcac8236fpvd1iawkz4wqjybkpn8dbwaliqz5jfkidlyn";
   };
 
diff --git a/pkgs/development/libraries/SDL2/default.nix b/pkgs/development/libraries/SDL2/default.nix
index c32f59636a92..5e01a83b7c0c 100644
--- a/pkgs/development/libraries/SDL2/default.nix
+++ b/pkgs/development/libraries/SDL2/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   version = "2.0.8";
 
   src = fetchurl {
-    url = "http://www.libsdl.org/release/${name}.tar.gz";
+    url = "https://www.libsdl.org/release/${name}.tar.gz";
     sha256 = "1v4js1gkr75hzbxzhwzzif0sf9g07234sd23x1vdaqc661bprizd";
   };
 
diff --git a/pkgs/development/libraries/SDL2_image/default.nix b/pkgs/development/libraries/SDL2_image/default.nix
index ea5f37513afb..17a2dd14b272 100644
--- a/pkgs/development/libraries/SDL2_image/default.nix
+++ b/pkgs/development/libraries/SDL2_image/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.0.3";
 
   src = fetchurl {
-    url = "http://www.libsdl.org/projects/SDL_image/release/${name}.tar.gz";
+    url = "https://www.libsdl.org/projects/SDL_image/release/${name}.tar.gz";
     sha256 = "0s13dmakn21q6yw8avl67d4zkxzl1wap6l5nwf6cvzrmlxfw441m";
   };
 
diff --git a/pkgs/development/libraries/SDL2_mixer/default.nix b/pkgs/development/libraries/SDL2_mixer/default.nix
index f31fe33ea096..3819aeb3c316 100644
--- a/pkgs/development/libraries/SDL2_mixer/default.nix
+++ b/pkgs/development/libraries/SDL2_mixer/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
   version = "2.0.2";
 
   src = fetchurl {
-    url = "http://www.libsdl.org/projects/SDL_mixer/release/${name}.tar.gz";
+    url = "https://www.libsdl.org/projects/SDL_mixer/release/${name}.tar.gz";
     sha256 = "1fw3kkqi5346ai5if4pxrcbhs5c4vv3a4smgz6fl6kyaxwkmwqaf";
   };
 
diff --git a/pkgs/development/libraries/SDL2_net/default.nix b/pkgs/development/libraries/SDL2_net/default.nix
index 5cadfb9d9051..1cb74ac1b2d3 100644
--- a/pkgs/development/libraries/SDL2_net/default.nix
+++ b/pkgs/development/libraries/SDL2_net/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.0.1";
 
   src = fetchurl {
-    url = "http://www.libsdl.org/projects/SDL_net/release/${name}.tar.gz";
+    url = "https://www.libsdl.org/projects/SDL_net/release/${name}.tar.gz";
     sha256 = "08cxc1bicmyk89kiks7izw1rlx5ng5n6xpy8fy0zxni3b9z8mkhm";
   };
 
diff --git a/pkgs/development/libraries/SDL_gfx/default.nix b/pkgs/development/libraries/SDL_gfx/default.nix
index 83a2ffc077c3..68c8c16ed4e8 100644
--- a/pkgs/development/libraries/SDL_gfx/default.nix
+++ b/pkgs/development/libraries/SDL_gfx/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.0.26";
 
   src = fetchurl {
-    url = "http://www.ferzkopp.net/Software/SDL_gfx-2.0/${name}.tar.gz";
+    url = "https://www.ferzkopp.net/Software/SDL_gfx-2.0/${name}.tar.gz";
     sha256 = "0ijljhs0v99dj6y27hc10z6qchyp8gdp4199y6jzngy6dzxlzsvw";
   };
 
diff --git a/pkgs/development/libraries/SDL_image/default.nix b/pkgs/development/libraries/SDL_image/default.nix
index c8cab33ed57f..56701e80b1f3 100644
--- a/pkgs/development/libraries/SDL_image/default.nix
+++ b/pkgs/development/libraries/SDL_image/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.2.12";
 
   src = fetchurl {
-    url    = "http://www.libsdl.org/projects/SDL_image/release/${name}.tar.gz";
+    url    = "https://www.libsdl.org/projects/SDL_image/release/${name}.tar.gz";
     sha256 = "16an9slbb8ci7d89wakkmyfvp7c0cval8xw4hkg0842nhhlp540b";
   };
 
diff --git a/pkgs/development/libraries/SDL_sound/default.nix b/pkgs/development/libraries/SDL_sound/default.nix
index e471c3cc556f..2a009a3b7104 100644
--- a/pkgs/development/libraries/SDL_sound/default.nix
+++ b/pkgs/development/libraries/SDL_sound/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.0.3";
 
   src = fetchurl {
-    url = "http://icculus.org/SDL_sound/downloads/${name}.tar.gz";
+    url = "https://icculus.org/SDL_sound/downloads/${name}.tar.gz";
     sha256 = "1pz6g56gcy7pmmz3hhych3iq9jvinml2yjz15fjqjlj8pc5zv69r";
   };
 
diff --git a/pkgs/development/libraries/SDL_ttf/default.nix b/pkgs/development/libraries/SDL_ttf/default.nix
index f98e4a3b0ad3..cf6b53021f79 100644
--- a/pkgs/development/libraries/SDL_ttf/default.nix
+++ b/pkgs/development/libraries/SDL_ttf/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.0.11";
 
   src = fetchurl {
-    url = "http://www.libsdl.org/projects/SDL_ttf/release/${name}.tar.gz";
+    url = "https://www.libsdl.org/projects/SDL_ttf/release/${name}.tar.gz";
     sha256 = "1dydxd4f5kb1288i5n5568kdk2q7f8mqjr7i7sd33nplxjaxhk3j";
   };
 
diff --git a/pkgs/development/libraries/adns/default.nix b/pkgs/development/libraries/adns/default.nix
index 3db15892a144..0f0e30ef0f3b 100644
--- a/pkgs/development/libraries/adns/default.nix
+++ b/pkgs/development/libraries/adns/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     urls = [
-      "http://www.chiark.greenend.org.uk/~ian/adns/ftp/adns-${version}.tar.gz"
+      "https://www.chiark.greenend.org.uk/~ian/adns/ftp/adns-${version}.tar.gz"
       "ftp://ftp.chiark.greenend.org.uk/users/ian/adns/adns-${version}.tar.gz"
       "mirror://gnu/adns/adns-${version}.tar.gz"
     ];
diff --git a/pkgs/development/libraries/aubio/default.nix b/pkgs/development/libraries/aubio/default.nix
index 51ae14be4046..adcb86cedf84 100644
--- a/pkgs/development/libraries/aubio/default.nix
+++ b/pkgs/development/libraries/aubio/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   name = "aubio-0.4.6";
 
   src = fetchurl {
-    url = "http://aubio.org/pub/${name}.tar.bz2";
+    url = "https://aubio.org/pub/${name}.tar.bz2";
     sha256 = "1yvwskahx1bf3x2fvi6cwah1ay11iarh79fjlqz8s887y3hkpixx";
   };
 
diff --git a/pkgs/development/libraries/audio/lilv/default.nix b/pkgs/development/libraries/audio/lilv/default.nix
index 427625d6fc67..710c5b1a92cb 100644
--- a/pkgs/development/libraries/audio/lilv/default.nix
+++ b/pkgs/development/libraries/audio/lilv/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.24.2";
 
   src = fetchurl {
-    url = "http://download.drobilla.net/${name}.tar.bz2";
+    url = "https://download.drobilla.net/${name}.tar.bz2";
     sha256 = "08m5a372pr1l7aii9s3pic5nm68gynx1n1bc7bnlswziq6qnbv7p";
   };
 
diff --git a/pkgs/development/libraries/audio/sratom/default.nix b/pkgs/development/libraries/audio/sratom/default.nix
index d30cb1d369eb..4709d0348537 100644
--- a/pkgs/development/libraries/audio/sratom/default.nix
+++ b/pkgs/development/libraries/audio/sratom/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.6.0";
 
   src = fetchurl {
-    url = "http://download.drobilla.net/${name}.tar.bz2";
+    url = "https://download.drobilla.net/${name}.tar.bz2";
     sha256 = "0hrxd9i66s06bpn6i3s9ka95134g3sm8yscmif7qgdzhyjqw42j4";
   };
 
diff --git a/pkgs/development/libraries/audio/suil/default.nix b/pkgs/development/libraries/audio/suil/default.nix
index 63f43ac7a2c0..e29c7b5cb122 100644
--- a/pkgs/development/libraries/audio/suil/default.nix
+++ b/pkgs/development/libraries/audio/suil/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   name = "${pname}-qt${if withQt4 then "4" else "5"}-${version}";
 
   src = fetchurl {
-    url = "http://download.drobilla.net/${pname}-${version}.tar.bz2";
+    url = "https://download.drobilla.net/${pname}-${version}.tar.bz2";
     sha256 = "0j489gm3fhnmwmbgw30bvd4byw1vsy4yazdlnji8jzhcz0qwb5cq";
   };
 
diff --git a/pkgs/development/libraries/audiofile/default.nix b/pkgs/development/libraries/audiofile/default.nix
index 182471acf4ae..1ed457aa5fe1 100644
--- a/pkgs/development/libraries/audiofile/default.nix
+++ b/pkgs/development/libraries/audiofile/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     ];
 
   src = fetchurl {
-    url = "http://audiofile.68k.org/${name}.tar.gz";
+    url = "https://audiofile.68k.org/${name}.tar.gz";
     sha256 = "0rb927zknk9kmhprd8rdr4azql4gn2dp75a36iazx2xhkbqhvind";
   };
 
diff --git a/pkgs/development/libraries/babl/default.nix b/pkgs/development/libraries/babl/default.nix
index f3e7fc7f1621..a82f4e7dfdae 100644
--- a/pkgs/development/libraries/babl/default.nix
+++ b/pkgs/development/libraries/babl/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "babl-0.1.50";
 
   src = fetchurl {
-    url = "http://ftp.gtk.org/pub/babl/0.1/${name}.tar.bz2";
+    url = "https://ftp.gtk.org/pub/babl/0.1/${name}.tar.bz2";
     sha256 = "0bavr2y4v88pip7vlca4kwmnksk2qxcvkkdp9jyfi6pzh701sb5m";
   };
 
diff --git a/pkgs/development/libraries/c-ares/default.nix b/pkgs/development/libraries/c-ares/default.nix
index a384a7707832..6f9b94fc872b 100644
--- a/pkgs/development/libraries/c-ares/default.nix
+++ b/pkgs/development/libraries/c-ares/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "c-ares-1.14.0";
 
   src = fetchurl {
-    url = "http://c-ares.haxx.se/download/${name}.tar.gz";
+    url = "https://c-ares.haxx.se/download/${name}.tar.gz";
     sha256 = "0vnwmbvymw677k780kpb6sb8i3szdp89rzy8mz1fwg1657yw3ls5";
   };
 
diff --git a/pkgs/development/libraries/cairo/default.nix b/pkgs/development/libraries/cairo/default.nix
index 44cdfc4e0eef..4486149cfcef 100644
--- a/pkgs/development/libraries/cairo/default.nix
+++ b/pkgs/development/libraries/cairo/default.nix
@@ -16,7 +16,7 @@ in stdenv.mkDerivation rec {
   name = "cairo-${version}";
 
   src = fetchurl {
-    url = "http://cairographics.org/${if stdenv.lib.mod (builtins.fromJSON (stdenv.lib.versions.minor version)) 2 == 0 then "releases" else "snapshots"}/${name}.tar.xz";
+    url = "https://cairographics.org/${if stdenv.lib.mod (builtins.fromJSON (stdenv.lib.versions.minor version)) 2 == 0 then "releases" else "snapshots"}/${name}.tar.xz";
     sha256 = "1jcl0mnqq6j2xip8p506g2cj54sfycm339rrd3p4g2jljhdhh8vn";
   };
 
diff --git a/pkgs/development/libraries/cairomm/default.nix b/pkgs/development/libraries/cairomm/default.nix
index 09d162db8532..47250f2b3da2 100644
--- a/pkgs/development/libraries/cairomm/default.nix
+++ b/pkgs/development/libraries/cairomm/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   name = "cairomm-${ver_maj}.${ver_min}";
 
   src = fetchurl {
-    url = "http://www.cairographics.org/releases/${name}.tar.gz";
+    url = "https://www.cairographics.org/releases/${name}.tar.gz";
     # gnome doesn't have the latest version ATM; beware: same name but different hash
     # url = "mirror://gnome/sources/cairomm/${ver_maj}/${name}.tar.xz";
     sha256 = "16fmigxsaz85c3lgcls7biwyz8zy8c8h3jndfm54cxxas3a7zi25";
diff --git a/pkgs/development/libraries/cppunit/default.nix b/pkgs/development/libraries/cppunit/default.nix
index 7b48ffcaccf8..0690bd425aec 100644
--- a/pkgs/development/libraries/cppunit/default.nix
+++ b/pkgs/development/libraries/cppunit/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.14.0";
 
   src = fetchurl {
-    url = "http://dev-www.libreoffice.org/src/${name}.tar.gz";
+    url = "https://dev-www.libreoffice.org/src/${name}.tar.gz";
     sha256 = "1027cyfx5gsjkdkaf6c2wnjh68882grw8n672018cj3vs9lrhmix";
   };
 
diff --git a/pkgs/development/libraries/ctpl/default.nix b/pkgs/development/libraries/ctpl/default.nix
index fd8fa1a994d6..d50aca1679b8 100644
--- a/pkgs/development/libraries/ctpl/default.nix
+++ b/pkgs/development/libraries/ctpl/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.3.4";
 
   src = fetchurl {
-    url = "http://download.tuxfamily.org/ctpl/releases/ctpl-${version}.tar.gz";
+    url = "https://download.tuxfamily.org/ctpl/releases/ctpl-${version}.tar.gz";
     sha256 = "1yr92xv9n6kgyixwg9ps4zb404ic5pgb171k4bi3mv9p6k8gv59s";
   };
 
diff --git a/pkgs/development/libraries/db/generic.nix b/pkgs/development/libraries/db/generic.nix
index 06dde2ad4078..fb1292181756 100644
--- a/pkgs/development/libraries/db/generic.nix
+++ b/pkgs/development/libraries/db/generic.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (rec {
   name = "db-${version}";
 
   src = fetchurl {
-    url = "http://download.oracle.com/berkeley-db/${name}.tar.gz";
+    url = "https://download.oracle.com/berkeley-db/${name}.tar.gz";
     sha256 = sha256;
   };
 
diff --git a/pkgs/development/libraries/dbus/default.nix b/pkgs/development/libraries/dbus/default.nix
index 4f6bd829099f..ade6c98df942 100644
--- a/pkgs/development/libraries/dbus/default.nix
+++ b/pkgs/development/libraries/dbus/default.nix
@@ -14,7 +14,7 @@ self = stdenv.mkDerivation {
     inherit version;
 
     src = fetchurl {
-      url = "http://dbus.freedesktop.org/releases/dbus/dbus-${version}.tar.gz";
+      url = "https://dbus.freedesktop.org/releases/dbus/dbus-${version}.tar.gz";
       inherit sha256;
     };
 
diff --git a/pkgs/development/libraries/eigen/2.0.nix b/pkgs/development/libraries/eigen/2.0.nix
index 8841855a24ed..015aeaed55ba 100644
--- a/pkgs/development/libraries/eigen/2.0.nix
+++ b/pkgs/development/libraries/eigen/2.0.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation {
   name = "eigen-${v}";
 
   src = fetchurl {
-    url = "http://bitbucket.org/eigen/eigen/get/${v}.tar.bz2";
+    url = "https://bitbucket.org/eigen/eigen/get/${v}.tar.bz2";
     name = "eigen-${v}.tar.bz2";
     sha256 = "0q4ry2pmdb9lvm0g92wi6s6qng3m9q73n5flwbkfcz1nxmbfhmbj";
   };
diff --git a/pkgs/development/libraries/eigen/3.3.nix b/pkgs/development/libraries/eigen/3.3.nix
index 7de05926da59..e6d13a5915a1 100644
--- a/pkgs/development/libraries/eigen/3.3.nix
+++ b/pkgs/development/libraries/eigen/3.3.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation {
   name = "eigen-${version}";
   
   src = fetchurl {
-    url = "http://bitbucket.org/eigen/eigen/get/${version}.tar.gz";
+    url = "https://bitbucket.org/eigen/eigen/get/${version}.tar.gz";
     name = "eigen-${version}.tar.gz";
     sha256 = "1q85bgd6hnsgn0kq73wa4jwh4qdwklfg73pgqrz4zmxvzbqyi1j2";
   };
diff --git a/pkgs/development/libraries/eigen/default.nix b/pkgs/development/libraries/eigen/default.nix
index 4e1559e5c738..c120132dcb8b 100644
--- a/pkgs/development/libraries/eigen/default.nix
+++ b/pkgs/development/libraries/eigen/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation {
   name = "eigen-${version}";
 
   src = fetchurl {
-    url = "http://bitbucket.org/eigen/eigen/get/${version}.tar.gz";
+    url = "https://bitbucket.org/eigen/eigen/get/${version}.tar.gz";
     name = "eigen-${version}.tar.gz";
     sha256 = "00l52y7m276gh8wjkqqcxz6x687azrm7a70s3iraxnpy9bxa9y04";
   };
diff --git a/pkgs/development/libraries/exempi/default.nix b/pkgs/development/libraries/exempi/default.nix
index 1f58fd698da3..ac2c21d4cf0e 100644
--- a/pkgs/development/libraries/exempi/default.nix
+++ b/pkgs/development/libraries/exempi/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "exempi-2.4.5";
 
   src = fetchurl {
-    url = "http://libopenraw.freedesktop.org/download/${name}.tar.bz2";
+    url = "https://libopenraw.freedesktop.org/download/${name}.tar.bz2";
     sha256 = "07i29xmg8bqriviaf4vi1mwha4lrw85kfla29cfym14fp3z8aqa0";
   };
 
diff --git a/pkgs/development/libraries/gdal/default.nix b/pkgs/development/libraries/gdal/default.nix
index e15f2583f4da..813ea0504653 100644
--- a/pkgs/development/libraries/gdal/default.nix
+++ b/pkgs/development/libraries/gdal/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   name = "gdal-${version}";
 
   src = fetchurl {
-    url = "http://download.osgeo.org/gdal/${version}/${name}.tar.xz";
+    url = "https://download.osgeo.org/gdal/${version}/${name}.tar.xz";
     sha256 = "18iaamzkn0lipizynvspf3bs5qzgcy36hn6bbi941q8dlfdf8xbg";
   };
 
diff --git a/pkgs/development/libraries/gdal/gdal-1_11.nix b/pkgs/development/libraries/gdal/gdal-1_11.nix
index 7a80ce7fdb66..7d0b70ec627e 100644
--- a/pkgs/development/libraries/gdal/gdal-1_11.nix
+++ b/pkgs/development/libraries/gdal/gdal-1_11.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   name = "gdal-${version}";
 
   src = fetchurl {
-    url = "http://download.osgeo.org/gdal/${version}/${name}.tar.gz";
+    url = "https://download.osgeo.org/gdal/${version}/${name}.tar.gz";
     sha256 = "561588bdfd9ca91919d4679a77a2b44214b158934ee8b425295ca5be33a1014d";
   };
 
diff --git a/pkgs/development/libraries/gegl/3.0.nix b/pkgs/development/libraries/gegl/3.0.nix
index 161153b7e3dc..287c33243865 100644
--- a/pkgs/development/libraries/gegl/3.0.nix
+++ b/pkgs/development/libraries/gegl/3.0.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   name = "gegl-0.3.34";
 
   src = fetchurl {
-    url = "http://download.gimp.org/pub/gegl/0.3/${name}.tar.bz2";
+    url = "https://download.gimp.org/pub/gegl/0.3/${name}.tar.bz2";
     sha256 = "010k86wn8cmr07rqwa4lccrmiiqrwbnkxvic4lpapwgbamv258jw";
   };
 
diff --git a/pkgs/development/libraries/gegl/4.0.nix b/pkgs/development/libraries/gegl/4.0.nix
index e9230b218be9..623ee5b3375c 100644
--- a/pkgs/development/libraries/gegl/4.0.nix
+++ b/pkgs/development/libraries/gegl/4.0.nix
@@ -8,7 +8,7 @@ in stdenv.mkDerivation rec {
   name = "gegl-${version}";
 
   src = fetchurl {
-    url = "http://download.gimp.org/pub/gegl/${stdenv.lib.versions.majorMinor version}/${name}.tar.bz2";
+    url = "https://download.gimp.org/pub/gegl/${stdenv.lib.versions.majorMinor version}/${name}.tar.bz2";
     sha256 = "13bzl0k5l12pk8bkcq4ar7wscbnw7jswhp34mwfsrf10kp0qndba";
   };
 
diff --git a/pkgs/development/libraries/geoclue/2.0.nix b/pkgs/development/libraries/geoclue/2.0.nix
index 4d348c92171b..eb7a6d6aaf21 100644
--- a/pkgs/development/libraries/geoclue/2.0.nix
+++ b/pkgs/development/libraries/geoclue/2.0.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
   name = "geoclue-2.4.8";
 
   src = fetchurl {
-    url = "http://www.freedesktop.org/software/geoclue/releases/2.4/${name}.tar.xz";
+    url = "https://www.freedesktop.org/software/geoclue/releases/2.4/${name}.tar.xz";
     sha256 = "08yg1r7m0n9hwyvcy769qkmkf8lslqwv69cjfffwnc3zm5km25qj";
   };
 
diff --git a/pkgs/development/libraries/geos/default.nix b/pkgs/development/libraries/geos/default.nix
index 24e3b4842faf..b92f6e61f56a 100644
--- a/pkgs/development/libraries/geos/default.nix
+++ b/pkgs/development/libraries/geos/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "geos-3.6.2";
 
   src = fetchurl {
-    url = "http://download.osgeo.org/geos/${name}.tar.bz2";
+    url = "https://download.osgeo.org/geos/${name}.tar.bz2";
     sha256 = "0ak5szby29l9l0vy43dm5z2g92xzdky20q1gc1kah1fnhkgi6nh4";
   };
 
diff --git a/pkgs/development/libraries/gf2x/default.nix b/pkgs/development/libraries/gf2x/default.nix
index 7ab06afdad61..1a449f57be7f 100644
--- a/pkgs/development/libraries/gf2x/default.nix
+++ b/pkgs/development/libraries/gf2x/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
 
   # or fetchFromGitHub(owner,repo,rev) or fetchgit(rev)
   src = fetchurl {
-    url = "http://gforge.inria.fr/frs/download.php/file/30873/gf2x-1.1.tar.gz";
+    url = "https://gforge.inria.fr/frs/download.php/file/30873/gf2x-1.1.tar.gz";
     sha256 = "17w4b39j9dvri5s278pxi8ha7mf47j87kq1lr802l4408rh02gqd";
   };
 
diff --git a/pkgs/development/libraries/gle/default.nix b/pkgs/development/libraries/gle/default.nix
index 1980c633474f..dd72637f2eb0 100644
--- a/pkgs/development/libraries/gle/default.nix
+++ b/pkgs/development/libraries/gle/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   src = fetchurl {
     urls = [
       "mirror://sourceforge/project/gle/gle/gle-3.1.0/gle-3.1.0.tar.gz"
-      "http://www.linas.org/gle/pub/gle-3.1.0.tar.gz"
+      "https://www.linas.org/gle/pub/gle-3.1.0.tar.gz"
       ];
     sha256 = "09zs1di4dsssl9k322nzildvf41jwipbzhik9p43yb1bcfsp92nw";
   };
diff --git a/pkgs/development/libraries/gloox/default.nix b/pkgs/development/libraries/gloox/default.nix
index b6de369a1ec3..eeeff731a6e3 100644
--- a/pkgs/development/libraries/gloox/default.nix
+++ b/pkgs/development/libraries/gloox/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   name = "gloox-${version}";
 
   src = fetchurl {
-    url = "http://camaya.net/download/gloox-${version}.tar.bz2";
+    url = "https://camaya.net/download/gloox-${version}.tar.bz2";
     sha256 = "1k57qgif1yii515m6jaqaibkdysfab6394bpawd2l67321f1a4rw";
   };
 
diff --git a/pkgs/development/libraries/gtdialog/default.nix b/pkgs/development/libraries/gtdialog/default.nix
index 36da2fb72aa4..d0a2d3691b49 100644
--- a/pkgs/development/libraries/gtdialog/default.nix
+++ b/pkgs/development/libraries/gtdialog/default.nix
@@ -6,7 +6,7 @@ let
     version="1.4";
     name="${baseName}-${version}";
     hash="1lhsaz56s8m838fi6vnfcd2r6djymvy3n2pbqhii88hraapq3rfk";
-    url="http://foicica.com/gtdialog/download/gtdialog_1.4.zip";
+    url="https://foicica.com/gtdialog/download/gtdialog_1.4.zip";
     sha256="1lhsaz56s8m838fi6vnfcd2r6djymvy3n2pbqhii88hraapq3rfk";
   };
   nativeBuildInputs = [ pkgconfig ];
diff --git a/pkgs/development/libraries/harfbuzz/default.nix b/pkgs/development/libraries/harfbuzz/default.nix
index 81a2c8691796..7c67ab48ad4c 100644
--- a/pkgs/development/libraries/harfbuzz/default.nix
+++ b/pkgs/development/libraries/harfbuzz/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   name = "harfbuzz${optionalString withIcu "-icu"}-${version}";
 
   src = fetchurl {
-    url = "http://www.freedesktop.org/software/harfbuzz/release/harfbuzz-${version}.tar.bz2";
+    url = "https://www.freedesktop.org/software/harfbuzz/release/harfbuzz-${version}.tar.bz2";
     sha256 = "18wnbq919k5h8pfm1pfy38gs1qzj1hnfr1wq989bix1n2jiii1d1";
   };
 
diff --git a/pkgs/development/libraries/ip2location-c/default.nix b/pkgs/development/libraries/ip2location-c/default.nix
index 82a4ec337555..a48908f41dd4 100644
--- a/pkgs/development/libraries/ip2location-c/default.nix
+++ b/pkgs/development/libraries/ip2location-c/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     sha256 = "1gs43qgcyfn83abrkhvvw1s67d1sbkbj3hab9m17ysn6swafiycx";
-    url = "http://www.ip2location.com/downloads/ip2location-c-${version}.tar.gz";
+    url = "https://www.ip2location.com/downloads/ip2location-c-${version}.tar.gz";
   };
 
   nativeBuildInputs = [ autoreconfHook ];
diff --git a/pkgs/development/libraries/isl/0.11.1.nix b/pkgs/development/libraries/isl/0.11.1.nix
index cdb018d297b6..20a60f1a102d 100644
--- a/pkgs/development/libraries/isl/0.11.1.nix
+++ b/pkgs/development/libraries/isl/0.11.1.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "isl-0.11.1"; # CLooG 0.16.3 fails to build with ISL 0.08.
 
   src = fetchurl {
-    url = "http://src.fedoraproject.org/repo/pkgs/gcc/isl-0.11.1.tar.bz2/bce1586384d8635a76d2f017fb067cd2/isl-0.11.1.tar.bz2";
+    url = "https://src.fedoraproject.org/repo/pkgs/gcc/isl-0.11.1.tar.bz2/bce1586384d8635a76d2f017fb067cd2/isl-0.11.1.tar.bz2";
     sha256 = "13d9cqa5rzhbjq0xf0b2dyxag7pqa72xj9dhsa03m8ccr1a4npq9";
   };
 
diff --git a/pkgs/development/libraries/java/dbus-java/default.nix b/pkgs/development/libraries/java/dbus-java/default.nix
index 23adfd80caac..daee9adb1fdc 100644
--- a/pkgs/development/libraries/java/dbus-java/default.nix
+++ b/pkgs/development/libraries/java/dbus-java/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "dbus-java-2.7";
   src = fetchurl {
-    url = http://dbus.freedesktop.org/releases/dbus-java/dbus-java-2.7.tar.gz;
+    url = https://dbus.freedesktop.org/releases/dbus-java/dbus-java-2.7.tar.gz;
     sha256 = "0cyaxd8x6sxmi6pklkkx45j311a6w51fxl4jc5j3inc4cailwh5y";
   };
   JAVA_HOME=jdk;
diff --git a/pkgs/development/libraries/java/geoipjava/default.nix b/pkgs/development/libraries/java/geoipjava/default.nix
index 13b4df395e50..6af8885464a3 100644
--- a/pkgs/development/libraries/java/geoipjava/default.nix
+++ b/pkgs/development/libraries/java/geoipjava/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "GeoIPJava-1.2.5";
   src = fetchurl {
-    url = http://geolite.maxmind.com/download/geoip/api/java/GeoIPJava-1.2.5.zip;
+    url = https://geolite.maxmind.com/download/geoip/api/java/GeoIPJava-1.2.5.zip;
     sha256 = "1gb2d0qvvq7xankz7l7ymbr3qprwk9bifpy4hlgw0sq4i6a55ypd";
   };
   buildInputs = [ jdk unzip ];
diff --git a/pkgs/development/libraries/java/libmatthew-java/default.nix b/pkgs/development/libraries/java/libmatthew-java/default.nix
index 877535331698..ad5192f94ce2 100644
--- a/pkgs/development/libraries/java/libmatthew-java/default.nix
+++ b/pkgs/development/libraries/java/libmatthew-java/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "libmatthew-java-0.8";
   src = fetchurl {
-    url = http://src.fedoraproject.org/repo/pkgs/libmatthew-java/libmatthew-java-0.8.tar.gz/8455b8751083ce25c99c2840609271f5/libmatthew-java-0.8.tar.gz;
+    url = https://src.fedoraproject.org/repo/pkgs/libmatthew-java/libmatthew-java-0.8.tar.gz/8455b8751083ce25c99c2840609271f5/libmatthew-java-0.8.tar.gz;
     sha256 = "1yldkhsdzm0a41a0i881bin2jklhp85y3ah245jd6fz3npcx7l85";
   };
   JAVA_HOME=jdk;
diff --git a/pkgs/development/libraries/jbigkit/default.nix b/pkgs/development/libraries/jbigkit/default.nix
index 6435e9fc32da..321ebb46e463 100644
--- a/pkgs/development/libraries/jbigkit/default.nix
+++ b/pkgs/development/libraries/jbigkit/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "jbigkit-2.1";
 
   src = fetchurl {
-    url = "http://www.cl.cam.ac.uk/~mgk25/jbigkit/download/${name}.tar.gz";
+    url = "https://www.cl.cam.ac.uk/~mgk25/jbigkit/download/${name}.tar.gz";
     sha256 = "0cnrcdr1dwp7h7m0a56qw09bv08krb37mpf7cml5sjdgpyv0cwfy";
   };
 
diff --git a/pkgs/development/libraries/libLAS/default.nix b/pkgs/development/libraries/libLAS/default.nix
index 1e7720b0656a..de796307de1a 100644
--- a/pkgs/development/libraries/libLAS/default.nix
+++ b/pkgs/development/libraries/libLAS/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
 
-    url = "http://download.osgeo.org/liblas/${name}.tar.bz2";
+    url = "https://download.osgeo.org/liblas/${name}.tar.bz2";
     sha256 = "0xjfxb3ydvr2258ji3spzyf81g9caap19ql2pk91wiivqsc4mnws";
   };
 
diff --git a/pkgs/development/libraries/libabw/default.nix b/pkgs/development/libraries/libabw/default.nix
index 187e06239c10..fe2229bcea6a 100644
--- a/pkgs/development/libraries/libabw/default.nix
+++ b/pkgs/development/libraries/libabw/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.1.2";
 
   src = fetchurl {
-    url = "http://dev-www.libreoffice.org/src/libabw/${name}.tar.xz";
+    url = "https://dev-www.libreoffice.org/src/libabw/${name}.tar.xz";
     sha256 = "11949iscdb99f2jplxjd39282jxcrf2fw0sqbh5dl7gqb96r8whb";
   };
 
diff --git a/pkgs/development/libraries/libantlr3c/default.nix b/pkgs/development/libraries/libantlr3c/default.nix
index 5f0b1ccd18ec..ef5838188593 100644
--- a/pkgs/development/libraries/libantlr3c/default.nix
+++ b/pkgs/development/libraries/libantlr3c/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "libantlr3c-3.4";
   src = fetchurl {
-    url = http://www.antlr3.org/download/C/libantlr3c-3.4.tar.gz;
+    url = https://www.antlr3.org/download/C/libantlr3c-3.4.tar.gz;
     sha256 ="0lpbnb4dq4azmsvlhp6khq1gy42kyqyjv8gww74g5lm2y6blm4fa";
   };
 
diff --git a/pkgs/development/libraries/libaudclient/default.nix b/pkgs/development/libraries/libaudclient/default.nix
index aab8fcd4beb8..eebe667badb9 100644
--- a/pkgs/development/libraries/libaudclient/default.nix
+++ b/pkgs/development/libraries/libaudclient/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "3.5-rc2";
 
   src = fetchurl {
-    url = "http://distfiles.audacious-media-player.org/${name}.tar.bz2";
+    url = "https://distfiles.audacious-media-player.org/${name}.tar.bz2";
     sha256 = "0nhpgz0kg8r00z54q5i96pjk7s57krq3fvdypq496c7fmlv9kdap";
   };
 
diff --git a/pkgs/development/libraries/libbsd/default.nix b/pkgs/development/libraries/libbsd/default.nix
index ff9412ceb580..36410e842a5d 100644
--- a/pkgs/development/libraries/libbsd/default.nix
+++ b/pkgs/development/libraries/libbsd/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.8.7";
 
   src = fetchurl {
-    url = "http://libbsd.freedesktop.org/releases/${name}.tar.xz";
+    url = "https://libbsd.freedesktop.org/releases/${name}.tar.xz";
     sha256 = "0c9bl49zs0xdddcwj5dh0lay9sxi2m1yi74848g8p87mb87g2j7m";
   };
 
diff --git a/pkgs/development/libraries/libcdr/default.nix b/pkgs/development/libraries/libcdr/default.nix
index 6d8cafcfaa60..8b5130b0eac8 100644
--- a/pkgs/development/libraries/libcdr/default.nix
+++ b/pkgs/development/libraries/libcdr/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libcdr-0.1.4";
 
   src = fetchurl {
-    url = "http://dev-www.libreoffice.org/src/${name}.tar.xz";
+    url = "https://dev-www.libreoffice.org/src/${name}.tar.xz";
     sha256 = "0vd6likgk51j46llybkx4wq3674xzrhp0k82220pkx9x1aqfi9z7";
   };
 
diff --git a/pkgs/development/libraries/libclthreads/default.nix b/pkgs/development/libraries/libclthreads/default.nix
index ea27046279c7..6d37eb19c712 100644
--- a/pkgs/development/libraries/libclthreads/default.nix
+++ b/pkgs/development/libraries/libclthreads/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.4.0";
 
   src = fetchurl {
-    url = "http://kokkinizita.linuxaudio.org/linuxaudio/downloads/clthreads-${version}.tar.bz2";
+    url = "https://kokkinizita.linuxaudio.org/linuxaudio/downloads/clthreads-${version}.tar.bz2";
     sha256 = "1s8xx99z6llv46cvkllmd72v2pkzbfl5gngcql85mf14mxkdb7x6";
   };
 
diff --git a/pkgs/development/libraries/libclxclient/default.nix b/pkgs/development/libraries/libclxclient/default.nix
index 3386b081a104..ce67a8efa80e 100644
--- a/pkgs/development/libraries/libclxclient/default.nix
+++ b/pkgs/development/libraries/libclxclient/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "3.9.0";
 
   src = fetchurl {
-    url = "http://kokkinizita.linuxaudio.org/linuxaudio/downloads/clxclient-${version}.tar.bz2";
+    url = "https://kokkinizita.linuxaudio.org/linuxaudio/downloads/clxclient-${version}.tar.bz2";
     sha256 = "14l7xrh964gllymraq4n5pgax94p5jsfjslqi5c6637zc4lmgnl0";
   };
 
diff --git a/pkgs/development/libraries/libcutl/default.nix b/pkgs/development/libraries/libcutl/default.nix
index 7b4d39f955aa..81122a6eb520 100644
--- a/pkgs/development/libraries/libcutl/default.nix
+++ b/pkgs/development/libraries/libcutl/default.nix
@@ -15,7 +15,7 @@ mkDerivation rec {
   };
 
   src = fetchurl {
-    url = "http://codesynthesis.com/download/libcutl/1.9/${name}.tar.bz2";
+    url = "https://codesynthesis.com/download/libcutl/1.9/${name}.tar.bz2";
     sha1 = "0e8d255145afbc339a3284ef85a43f4baf3fec43";
   };
 
diff --git a/pkgs/development/libraries/libdap/default.nix b/pkgs/development/libraries/libdap/default.nix
index fc0221b93889..5a0006ad6c6e 100644
--- a/pkgs/development/libraries/libdap/default.nix
+++ b/pkgs/development/libraries/libdap/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libuuid curl libxml2 ];
 
   src = fetchurl {
-    url = "http://www.opendap.org/pub/source/${name}.tar.gz";
+    url = "https://www.opendap.org/pub/source/${name}.tar.gz";
     sha256 = "0gnki93z3kkzp65x7n1kancy7bd503j4qja5fhzvm1gkmi5l65aj";
   };
 
diff --git a/pkgs/development/libraries/libdivecomputer/default.nix b/pkgs/development/libraries/libdivecomputer/default.nix
index a09e48dcc1d9..c94806b50c10 100644
--- a/pkgs/development/libraries/libdivecomputer/default.nix
+++ b/pkgs/development/libraries/libdivecomputer/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.6.0";
 
   src = fetchurl {
-    url = "http://www.libdivecomputer.org/releases/${name}.tar.gz";
+    url = "https://www.libdivecomputer.org/releases/${name}.tar.gz";
     sha256 = "0nm1mcscpxb9dv4p0lidd6rf5xg4vmcbigj6zqxvgn7pwnvpbzm0";
   };
 
diff --git a/pkgs/development/libraries/libdrm/default.nix b/pkgs/development/libraries/libdrm/default.nix
index 4d1b4e4c3fdc..93ef1957d2cd 100644
--- a/pkgs/development/libraries/libdrm/default.nix
+++ b/pkgs/development/libraries/libdrm/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libdrm-2.4.92";
 
   src = fetchurl {
-    url = "http://dri.freedesktop.org/libdrm/${name}.tar.bz2";
+    url = "https://dri.freedesktop.org/libdrm/${name}.tar.bz2";
     sha256 = "1yirzx8hmlvv6r0l7lb3zxmgy5la2mri9al0k16xqfg19pdqzr79";
   };
 
diff --git a/pkgs/development/libraries/libdwarf/default.nix b/pkgs/development/libraries/libdwarf/default.nix
index 6057dae4be2e..e81ea18103dc 100644
--- a/pkgs/development/libraries/libdwarf/default.nix
+++ b/pkgs/development/libraries/libdwarf/default.nix
@@ -3,7 +3,7 @@
 let
   version = "20180129";
   src = fetchurl {
-    url = "http://www.prevanders.net/libdwarf-${version}.tar.gz";
+    url = "https://www.prevanders.net/libdwarf-${version}.tar.gz";
     # Upstream displays this hash broken into three parts:
     sha512 = "02f8024bb9959c91a1fe322459f7587a589d096595"
            + "6d643921a173e6f9e0a184db7aef66f0fd2548d669"
diff --git a/pkgs/development/libraries/libeatmydata/default.nix b/pkgs/development/libraries/libeatmydata/default.nix
index 5f422f7018b8..5127231dab60 100644
--- a/pkgs/development/libraries/libeatmydata/default.nix
+++ b/pkgs/development/libraries/libeatmydata/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libeatmydata-105";
   
   src = fetchurl {
-    url = "http://www.flamingspork.com/projects/libeatmydata/${name}.tar.gz";
+    url = "https://www.flamingspork.com/projects/libeatmydata/${name}.tar.gz";
     sha256 = "1pd8sc73cgc41ldsvq6g8ics1m5k8gdcb91as9yg8z5jnrld1lmx";
   };
 
diff --git a/pkgs/development/libraries/libebml/default.nix b/pkgs/development/libraries/libebml/default.nix
index 4b233301cce7..b5b2b8e37349 100644
--- a/pkgs/development/libraries/libebml/default.nix
+++ b/pkgs/development/libraries/libebml/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libebml-1.3.5";
 
   src = fetchurl {
-    url = "http://dl.matroska.org/downloads/libebml/${name}.tar.xz";
+    url = "https://dl.matroska.org/downloads/libebml/${name}.tar.xz";
     sha256 = "005a0ipqnfbsq47zrc61zszi439jw32q5xd6dc1jyb3lc0zl266q";
   };
 
diff --git a/pkgs/development/libraries/libedit/default.nix b/pkgs/development/libraries/libedit/default.nix
index da4bbcad4fb6..bc4cea1b4702 100644
--- a/pkgs/development/libraries/libedit/default.nix
+++ b/pkgs/development/libraries/libedit/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libedit-20180525-3.1";
 
   src = fetchurl {
-    url = "http://thrysoee.dk/editline/${name}.tar.gz";
+    url = "https://thrysoee.dk/editline/${name}.tar.gz";
     sha256 = "05iicng4kag5hxdc7adbyj1gm3qbmvcc33m9cyx5gys0s67yl6y4";
   };
 
diff --git a/pkgs/development/libraries/libexttextcat/default.nix b/pkgs/development/libraries/libexttextcat/default.nix
index 0ba703585bbb..8d264c929a5b 100644
--- a/pkgs/development/libraries/libexttextcat/default.nix
+++ b/pkgs/development/libraries/libexttextcat/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libexttextcat-3.4.5";
 
   src = fetchurl {
-    url = "http://dev-www.libreoffice.org/src/libexttextcat/${name}.tar.xz";
+    url = "https://dev-www.libreoffice.org/src/libexttextcat/${name}.tar.xz";
     sha256 = "1j6sjwkyhqvsgyw938bxxfwkzzi1mahk66g5342lv6j89jfvrz8k";
   };
 
diff --git a/pkgs/development/libraries/libfakekey/default.nix b/pkgs/development/libraries/libfakekey/default.nix
index 6aca1d2be6d6..fa04655341d4 100644
--- a/pkgs/development/libraries/libfakekey/default.nix
+++ b/pkgs/development/libraries/libfakekey/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.1";
 
   src = fetchurl {
-    url = "http://downloads.yoctoproject.org/releases/matchbox/libfakekey/0.1/${name}.tar.gz";
+    url = "https://downloads.yoctoproject.org/releases/matchbox/libfakekey/0.1/${name}.tar.gz";
     sha256 = "10msplyn535hmzbmbdnx4zc20hkaw6d81if5lzxs82k8sq2mkx9k";
   };
 
diff --git a/pkgs/development/libraries/libftdi/1.x.nix b/pkgs/development/libraries/libftdi/1.x.nix
index c6deb1fc9291..b59bf9a06ac5 100644
--- a/pkgs/development/libraries/libftdi/1.x.nix
+++ b/pkgs/development/libraries/libftdi/1.x.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   name = "libftdi1-1.4";
 
   src = fetchurl {
-    url = "http://www.intra2net.com/en/developer/libftdi/download/${name}.tar.bz2";
+    url = "https://www.intra2net.com/en/developer/libftdi/download/${name}.tar.bz2";
     sha256 = "0x0vncf6i92slgrn0h7ghkskqbglbs534220qa84d0qg114zndpc";
   };
 
diff --git a/pkgs/development/libraries/libftdi/default.nix b/pkgs/development/libraries/libftdi/default.nix
index f90e741a57e9..74b87a46ef0a 100644
--- a/pkgs/development/libraries/libftdi/default.nix
+++ b/pkgs/development/libraries/libftdi/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libftdi-0.20";
 
   src = fetchurl {
-    url = "http://www.intra2net.com/en/developer/libftdi/download/${name}.tar.gz";
+    url = "https://www.intra2net.com/en/developer/libftdi/download/${name}.tar.gz";
     sha256 = "13l39f6k6gff30hsgh0wa2z422g9pyl91rh8a8zz6f34k2sxaxii";
   };
 
diff --git a/pkgs/development/libraries/libgdiplus/default.nix b/pkgs/development/libraries/libgdiplus/default.nix
index 79f49c629b86..05c320c42aec 100644
--- a/pkgs/development/libraries/libgdiplus/default.nix
+++ b/pkgs/development/libraries/libgdiplus/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   name = "libgdiplus-2.10.9";
 
   src = fetchurl {
-    url = "http://download.mono-project.com/sources/libgdiplus/${name}.tar.bz2";
+    url = "https://download.mono-project.com/sources/libgdiplus/${name}.tar.bz2";
     sha256 = "0klnbly2q0yx5p0l5z8da9lhqsjj9xqj06kdw2v7rnms4z1vdpkd";
   };
 
diff --git a/pkgs/development/libraries/libgeotiff/default.nix b/pkgs/development/libraries/libgeotiff/default.nix
index 3d49fa064509..48a1490caecf 100644
--- a/pkgs/development/libraries/libgeotiff/default.nix
+++ b/pkgs/development/libraries/libgeotiff/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "libgeotiff-${version}";
 
   src = fetchurl {
-    url = "http://download.osgeo.org/geotiff/libgeotiff/${name}.tar.gz";
+    url = "https://download.osgeo.org/geotiff/libgeotiff/${name}.tar.gz";
     sha256 = "0vjy3bwfhljjx66p9w999i4mdhsf7vjshx29yc3pn5livf5091xd";
   };
 
diff --git a/pkgs/development/libraries/libgig/default.nix b/pkgs/development/libraries/libgig/default.nix
index 90d41e30502f..08fce9c521ec 100644
--- a/pkgs/development/libraries/libgig/default.nix
+++ b/pkgs/development/libraries/libgig/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "4.1.0";
 
   src = fetchurl {
-    url = "http://download.linuxsampler.org/packages/${name}.tar.bz2";
+    url = "https://download.linuxsampler.org/packages/${name}.tar.bz2";
     sha256 = "02xx6bqxzgkvrawwnzrnxx1ypk244q4kpwfd58266f9ji8kq18h6";
   };
 
diff --git a/pkgs/development/libraries/libinput/default.nix b/pkgs/development/libraries/libinput/default.nix
index 3b4e3233d554..bf08db6d3b7b 100644
--- a/pkgs/development/libraries/libinput/default.nix
+++ b/pkgs/development/libraries/libinput/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   version = "1.11.0";
 
   src = fetchurl {
-    url = "http://www.freedesktop.org/software/libinput/${name}.tar.xz";
+    url = "https://www.freedesktop.org/software/libinput/${name}.tar.xz";
     sha256 = "04mwl1v51b785h7q3v23hahr0qzr48qq1jzj7d3msjvgh97nr8v4";
   };
 
diff --git a/pkgs/development/libraries/libmatchbox/default.nix b/pkgs/development/libraries/libmatchbox/default.nix
index fcecd3a9d132..798aef8e7da7 100644
--- a/pkgs/development/libraries/libmatchbox/default.nix
+++ b/pkgs/development/libraries/libmatchbox/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
   propagatedBuildInputs = [ libX11 libXext libpng ];
 
   src = fetchurl {
-    url = "http://downloads.yoctoproject.org/releases/matchbox/libmatchbox/${version}/libmatchbox-${version}.tar.bz2";
+    url = "https://downloads.yoctoproject.org/releases/matchbox/libmatchbox/${version}/libmatchbox-${version}.tar.bz2";
     sha256 = "0lvv44s3bf96zvkysa4ansxj2ffgj3b5kgpliln538q4wd9ank15";
   };
 
diff --git a/pkgs/development/libraries/libmatheval/default.nix b/pkgs/development/libraries/libmatheval/default.nix
index 1b17ff0dd433..8e429875b36b 100644
--- a/pkgs/development/libraries/libmatheval/default.nix
+++ b/pkgs/development/libraries/libmatheval/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ guile ];
 
   src = fetchurl {
-    url = "http://ftp.gnu.org/gnu/libmatheval/${name}.tar.gz";
+    url = "https://ftp.gnu.org/gnu/libmatheval/${name}.tar.gz";
     sha256 = "474852d6715ddc3b6969e28de5e1a5fbaff9e8ece6aebb9dc1cc63e9e88e89ab";
   };
 
diff --git a/pkgs/development/libraries/libmatroska/default.nix b/pkgs/development/libraries/libmatroska/default.nix
index 764f4442e6cb..e7bce0e80187 100644
--- a/pkgs/development/libraries/libmatroska/default.nix
+++ b/pkgs/development/libraries/libmatroska/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libmatroska-1.4.8";
 
   src = fetchurl {
-    url = "http://dl.matroska.org/downloads/libmatroska/${name}.tar.xz";
+    url = "https://dl.matroska.org/downloads/libmatroska/${name}.tar.xz";
     sha256 = "14n9sw974prr3yp4yjb7aadi6x2yz5a0hjw8fs3qigy5shh2piyq";
   };
 
diff --git a/pkgs/development/libraries/libmnl/default.nix b/pkgs/development/libraries/libmnl/default.nix
index 2dbdb60b4b66..7c4b451ae6d1 100644
--- a/pkgs/development/libraries/libmnl/default.nix
+++ b/pkgs/development/libraries/libmnl/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libmnl-1.0.4";
 
   src = fetchurl {
-    url = "http://netfilter.org/projects/libmnl/files/${name}.tar.bz2";
+    url = "https://netfilter.org/projects/libmnl/files/${name}.tar.bz2";
     sha256 = "108zampspaalv44zn0ar9h386dlfixpd149bnxa5hsi8kxlqj7qp";
   };
 
diff --git a/pkgs/development/libraries/libmpcdec/default.nix b/pkgs/development/libraries/libmpcdec/default.nix
index 084d7ba73704..a5a4d68ad969 100644
--- a/pkgs/development/libraries/libmpcdec/default.nix
+++ b/pkgs/development/libraries/libmpcdec/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "libmpcdec-1.2.6";
 
   src = fetchurl {
-    url = http://files.musepack.net/source/libmpcdec-1.2.6.tar.bz2;
+    url = https://files.musepack.net/source/libmpcdec-1.2.6.tar.bz2;
     sha256 = "1a0jdyga1zfi4wgkg3905y6inghy3s4xfs5m4x7pal08m0llkmab";
   };
 
diff --git a/pkgs/development/libraries/libmrss/default.nix b/pkgs/development/libraries/libmrss/default.nix
index b0adcf237549..f1a061e5ab58 100644
--- a/pkgs/development/libraries/libmrss/default.nix
+++ b/pkgs/development/libraries/libmrss/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "libmrss-0.19.2";
 
   src = fetchurl {
-    url = "http://www.autistici.org/bakunin/libmrss/libmrss-0.19.2.tar.gz";
+    url = "https://www.autistici.org/bakunin/libmrss/libmrss-0.19.2.tar.gz";
     sha256 = "02r1bgj8qlkn63xqfi5yq8y7wrilxcnkycaag8qskhg5ranic507";
   };
 
diff --git a/pkgs/development/libraries/libmspack/default.nix b/pkgs/development/libraries/libmspack/default.nix
index 79d4c056341c..ef250441daba 100644
--- a/pkgs/development/libraries/libmspack/default.nix
+++ b/pkgs/development/libraries/libmspack/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libmspack-0.6alpha";
 
   src = fetchurl {
-    url = "http://www.cabextract.org.uk/libmspack/${name}.tar.gz";
+    url = "https://www.cabextract.org.uk/libmspack/${name}.tar.gz";
     sha256 = "08gr2pcinas6bdqz3k0286g5cnksmcx813skmdwyca6bmj1fxnqy";
   };
 
diff --git a/pkgs/development/libraries/libmysqlconnectorcpp/default.nix b/pkgs/development/libraries/libmysqlconnectorcpp/default.nix
index 9eefbcfdb49e..2b7258031c33 100644
--- a/pkgs/development/libraries/libmysqlconnectorcpp/default.nix
+++ b/pkgs/development/libraries/libmysqlconnectorcpp/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.1.9";
 
   src = fetchurl {
-    url = "http://cdn.mysql.com/Downloads/Connector-C++/mysql-connector-c++-${version}.tar.gz";
+    url = "https://cdn.mysql.com/Downloads/Connector-C++/mysql-connector-c++-${version}.tar.gz";
     sha256 = "1r6j17sy5816a2ld759iis2k6igc2w9p70y4nw9w3rd4d5x88c9y";
   };
 
diff --git a/pkgs/development/libraries/libnetfilter_cthelper/default.nix b/pkgs/development/libraries/libnetfilter_cthelper/default.nix
index fa94fa549e42..a680e009ab6a 100644
--- a/pkgs/development/libraries/libnetfilter_cthelper/default.nix
+++ b/pkgs/development/libraries/libnetfilter_cthelper/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.0.0";
 
   src = fetchurl {
-    url = "http://netfilter.org/projects/libnetfilter_cthelper/files/${name}.tar.bz2";
+    url = "https://netfilter.org/projects/libnetfilter_cthelper/files/${name}.tar.bz2";
     sha256 = "07618e71c4d9a6b6b3dc1986540486ee310a9838ba754926c7d14a17d8fccf3d";
   };
 
diff --git a/pkgs/development/libraries/libnfnetlink/default.nix b/pkgs/development/libraries/libnfnetlink/default.nix
index 5395b5b2e99c..fa6461d86919 100644
--- a/pkgs/development/libraries/libnfnetlink/default.nix
+++ b/pkgs/development/libraries/libnfnetlink/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libnfnetlink-1.0.1";
 
   src = fetchurl {
-    url = "http://www.netfilter.org/projects/libnfnetlink/files/${name}.tar.bz2";
+    url = "https://www.netfilter.org/projects/libnfnetlink/files/${name}.tar.bz2";
     sha256 = "06mm2x4b01k3m7wnrxblk9j0mybyr4pfz28ml7944xhjx6fy2w7j";
   };
 
diff --git a/pkgs/development/libraries/libnice/default.nix b/pkgs/development/libraries/libnice/default.nix
index c7967c3fb6fc..cdf93b0b2ff4 100644
--- a/pkgs/development/libraries/libnice/default.nix
+++ b/pkgs/development/libraries/libnice/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libnice-0.1.14";
 
   src = fetchurl {
-    url = "http://nice.freedesktop.org/releases/${name}.tar.gz";
+    url = "https://nice.freedesktop.org/releases/${name}.tar.gz";
     sha256 = "17404z0fr6z3k7s2pkyyh9xp5gv7yylgyxx01mpl7424bnlhn4my";
   };
 
diff --git a/pkgs/development/libraries/libnxml/default.nix b/pkgs/development/libraries/libnxml/default.nix
index f34c421a120a..8d97a13b0a08 100644
--- a/pkgs/development/libraries/libnxml/default.nix
+++ b/pkgs/development/libraries/libnxml/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "libnxml-0.18.3";
 
   src = fetchurl {
-    url = "http://www.autistici.org/bakunin/libnxml/libnxml-0.18.3.tar.gz";
+    url = "https://www.autistici.org/bakunin/libnxml/libnxml-0.18.3.tar.gz";
     sha256 = "0ix5b9bxd7r517vhgcxwdviq4m0g0pq46s5g3h04gcqnpbin150g";
   };
 
diff --git a/pkgs/development/libraries/libpcap/default.nix b/pkgs/development/libraries/libpcap/default.nix
index 945554386930..f94f327ea02e 100644
--- a/pkgs/development/libraries/libpcap/default.nix
+++ b/pkgs/development/libraries/libpcap/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libpcap-1.8.1";
 
   src = fetchurl {
-    url = "http://www.tcpdump.org/release/${name}.tar.gz";
+    url = "https://www.tcpdump.org/release/${name}.tar.gz";
     sha256 = "07jlhc66z76dipj4j5v3dig8x6h3k6cb36kmnmpsixf3zmlvqgb7";
   };
 
diff --git a/pkgs/development/libraries/libplist/default.nix b/pkgs/development/libraries/libplist/default.nix
index d8ebc2e83a61..8da097c3d386 100644
--- a/pkgs/development/libraries/libplist/default.nix
+++ b/pkgs/development/libraries/libplist/default.nix
@@ -19,7 +19,7 @@ in stdenv.mkDerivation rec {
   '';
 
   src = fetchurl {
-    url = "http://www.libimobiledevice.org/downloads/${name}.tar.bz2";
+    url = "https://www.libimobiledevice.org/downloads/${name}.tar.bz2";
     sha256 = "00pnh9zf3iwdji2faccns7vagbmbrwbj9a8zp9s53a6rqaa9czis";
   };
 
diff --git a/pkgs/development/libraries/libraw/default.nix b/pkgs/development/libraries/libraw/default.nix
index 3ce4b3f2d3f9..9803e09610e6 100644
--- a/pkgs/development/libraries/libraw/default.nix
+++ b/pkgs/development/libraries/libraw/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.18.12";
 
   src = fetchurl {
-    url = "http://www.libraw.org/data/LibRaw-${version}.tar.gz";
+    url = "https://www.libraw.org/data/LibRaw-${version}.tar.gz";
     sha256 = "1m2khr2cij8z6lawgbmdksjn14fpnjsy8ad4qahnpqapm1slsxap";
   };
 
diff --git a/pkgs/development/libraries/librep/default.nix b/pkgs/development/libraries/librep/default.nix
index 5b3beda1eb8b..2f78222cebb1 100644
--- a/pkgs/development/libraries/librep/default.nix
+++ b/pkgs/development/libraries/librep/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
   sourceName = "librep_${version}";
 
   src = fetchurl {
-    url = "http://download.tuxfamily.org/librep/${sourceName}.tar.xz";
+    url = "https://download.tuxfamily.org/librep/${sourceName}.tar.xz";
     sha256 = "1bmcjl1x1rdh514q9z3hzyjmjmwwwkziipjpjsl301bwmiwrd8a8";
   };
 
diff --git a/pkgs/development/libraries/libspatialindex/default.nix b/pkgs/development/libraries/libspatialindex/default.nix
index aa3aaa1c59bc..8018b84a52be 100644
--- a/pkgs/development/libraries/libspatialindex/default.nix
+++ b/pkgs/development/libraries/libspatialindex/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   name = "libspatialindex-${version}";
 
   src = fetchurl {
-    url = "http://download.osgeo.org/libspatialindex/spatialindex-src-${version}.tar.gz";
+    url = "https://download.osgeo.org/libspatialindex/spatialindex-src-${version}.tar.gz";
     sha256 = "1vxzm7kczwnb6qdmc0hb00z8ykx11zk3sb68gc7rch4vrfi4dakw";
   };
 
diff --git a/pkgs/development/libraries/libspatialite/default.nix b/pkgs/development/libraries/libspatialite/default.nix
index 253c5365c8a3..b75baf149e1a 100644
--- a/pkgs/development/libraries/libspatialite/default.nix
+++ b/pkgs/development/libraries/libspatialite/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   name = "libspatialite-4.3.0a";
 
   src = fetchurl {
-    url = "http://www.gaia-gis.it/gaia-sins/libspatialite-sources/${name}.tar.gz";
+    url = "https://www.gaia-gis.it/gaia-sins/libspatialite-sources/${name}.tar.gz";
     sha256 = "16d4lpl7xrm9zy4gphy6nwanpjp8wn9g4wq2i2kh8abnlhq01448";
   };
 
diff --git a/pkgs/development/libraries/libspectre/default.nix b/pkgs/development/libraries/libspectre/default.nix
index 647e6f16fdf8..f1e4169bd48e 100644
--- a/pkgs/development/libraries/libspectre/default.nix
+++ b/pkgs/development/libraries/libspectre/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libspectre-0.2.7";
 
   src = fetchurl {
-    url = "http://libspectre.freedesktop.org/releases/${name}.tar.gz";
+    url = "https://libspectre.freedesktop.org/releases/${name}.tar.gz";
     sha256 = "1v63lqc6bhhxwkpa43qmz8phqs8ci4dhzizyy16d3vkb20m846z8";
   };
 
diff --git a/pkgs/development/libraries/libstatgrab/default.nix b/pkgs/development/libraries/libstatgrab/default.nix
index 72d73e358485..fb7b3be6b698 100644
--- a/pkgs/development/libraries/libstatgrab/default.nix
+++ b/pkgs/development/libraries/libstatgrab/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "libstatgrab-0.91";
 
   src = fetchurl {
-    url = "http://ftp.i-scream.org/pub/i-scream/libstatgrab/${name}.tar.gz";
+    url = "https://ftp.i-scream.org/pub/i-scream/libstatgrab/${name}.tar.gz";
     sha256 = "1azinx2yzs442ycwq6p15skl3mscmqj7fd5hq7fckhjp92735s83";
   };
 
diff --git a/pkgs/development/libraries/libtiff/default.nix b/pkgs/development/libraries/libtiff/default.nix
index 6676944d5291..c492a15bfa4e 100644
--- a/pkgs/development/libraries/libtiff/default.nix
+++ b/pkgs/development/libraries/libtiff/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   name = "libtiff-${version}";
 
   src = fetchurl {
-    url = "http://download.osgeo.org/libtiff/tiff-${version}.tar.gz";
+    url = "https://download.osgeo.org/libtiff/tiff-${version}.tar.gz";
     sha256 = "1kfg4q01r4mqn7dj63ifhi6pmqzbf4xax6ni6kkk81ri5kndwyvf";
   };
 
diff --git a/pkgs/development/libraries/libtsm/default.nix b/pkgs/development/libraries/libtsm/default.nix
index 58b052b8fae8..18ceb5302292 100644
--- a/pkgs/development/libraries/libtsm/default.nix
+++ b/pkgs/development/libraries/libtsm/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libtsm-3";
 
   src = fetchurl {
-    url = "http://freedesktop.org/software/kmscon/releases/${name}.tar.xz";
+    url = "https://freedesktop.org/software/kmscon/releases/${name}.tar.xz";
     sha256 = "01ygwrsxfii0pngfikgqsb4fxp8n1bbs47l7hck81h9b9bc1ah8i";
   };
 
diff --git a/pkgs/development/libraries/libtxc_dxtn/default.nix b/pkgs/development/libraries/libtxc_dxtn/default.nix
index 977570050158..21e3a15449c2 100644
--- a/pkgs/development/libraries/libtxc_dxtn/default.nix
+++ b/pkgs/development/libraries/libtxc_dxtn/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   name = "libtxc_dxtn-${version}";
 
   src = fetchurl {
-    url = "http://people.freedesktop.org/~cbrill/libtxc_dxtn/${name}.tar.bz2";
+    url = "https://people.freedesktop.org/~cbrill/libtxc_dxtn/${name}.tar.bz2";
     sha256 = "0q5fjaknl7s0z206dd8nzk9bdh8g4p23bz7784zrllnarl90saa5";
   };
 
diff --git a/pkgs/development/libraries/libusbmuxd/default.nix b/pkgs/development/libraries/libusbmuxd/default.nix
index 3d15b698b481..ae53178e88d9 100644
--- a/pkgs/development/libraries/libusbmuxd/default.nix
+++ b/pkgs/development/libraries/libusbmuxd/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation rec {
   name = "libusbmuxd-1.0.10";
   src = fetchurl {
-    url = "http://www.libimobiledevice.org/downloads/${name}.tar.bz2";
+    url = "https://www.libimobiledevice.org/downloads/${name}.tar.bz2";
     sha256 = "1wn9zq2224786mdr12c5hxad643d29wg4z6b7jn888jx4s8i78hs";
   };
 
diff --git a/pkgs/development/libraries/libva/1.0.0.nix b/pkgs/development/libraries/libva/1.0.0.nix
index 04d621e29c84..097ac0e3e98e 100644
--- a/pkgs/development/libraries/libva/1.0.0.nix
+++ b/pkgs/development/libraries/libva/1.0.0.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
   version = "1.7.3";
 
   src = fetchurl {
-    url = "http://www.freedesktop.org/software/vaapi/releases/libva/${name}.tar.bz2";
+    url = "https://www.freedesktop.org/software/vaapi/releases/libva/${name}.tar.bz2";
     sha256 = "1ndrf136rlw03xag7j1xpmf9015d1h0dpnv6v587jnh6k2a17g12";
   };
 
diff --git a/pkgs/development/libraries/libvirt-glib/default.nix b/pkgs/development/libraries/libvirt-glib/default.nix
index 0dbe30251bdd..2d83955de696 100644
--- a/pkgs/development/libraries/libvirt-glib/default.nix
+++ b/pkgs/development/libraries/libvirt-glib/default.nix
@@ -11,7 +11,7 @@ in stdenv.mkDerivation rec {
   outputs = [ "out" "dev" ];
 
   src = fetchurl {
-    url = "http://libvirt.org/sources/glib/${name}.tar.gz";
+    url = "https://libvirt.org/sources/glib/${name}.tar.gz";
     sha256 = "0iwa5sdbii52pjpdm5j37f67sdmf0kpcky4liwhy1nf43k85i4fa";
   };
 
diff --git a/pkgs/development/libraries/libx86/default.nix b/pkgs/development/libraries/libx86/default.nix
index d73d67a39cf2..d56c20cb75af 100644
--- a/pkgs/development/libraries/libx86/default.nix
+++ b/pkgs/development/libraries/libx86/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libx86-${version}";
   version = "1.1";
   src = fetchurl {
-    url = "http://www.codon.org.uk/~mjg59/libx86/downloads/${name}.tar.gz";
+    url = "https://www.codon.org.uk/~mjg59/libx86/downloads/${name}.tar.gz";
     sha256 = "0j6h6bc02c6qi0q7c1ncraz4d1hkm5936r35rfsp4x1jrc233wav";
   };
   patches = [./constants.patch ./non-x86.patch ];
diff --git a/pkgs/development/libraries/libxcomp/default.nix b/pkgs/development/libraries/libxcomp/default.nix
index d225831f7024..b4ad501c2efe 100644
--- a/pkgs/development/libraries/libxcomp/default.nix
+++ b/pkgs/development/libraries/libxcomp/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     sha256 = "1m3z9w3h6qpgk265xf030w7lcs181jgw2cdyzshb7l97mn1f7hh2";
-    url = "http://code.x2go.org/releases/source/nx-libs/nx-libs-${version}-lite.tar.gz";
+    url = "https://code.x2go.org/releases/source/nx-libs/nx-libs-${version}-lite.tar.gz";
   };
 
   buildInputs = [ libjpeg libpng libX11 zlib ];
diff --git a/pkgs/development/libraries/libyaml/default.nix b/pkgs/development/libraries/libyaml/default.nix
index 20053190e3bc..150da3d45997 100644
--- a/pkgs/development/libraries/libyaml/default.nix
+++ b/pkgs/development/libraries/libyaml/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   name = "libyaml-${version}";
 
   src = fetchurl {
-    url = "http://pyyaml.org/download/libyaml/yaml-${version}.tar.gz";
+    url = "https://pyyaml.org/download/libyaml/yaml-${version}.tar.gz";
     sha256 = "0a87931cx5m14a1x8rbjix3nz7agrcgndf4h392vm62a4rby9240";
   };
 
diff --git a/pkgs/development/libraries/libzdb/default.nix b/pkgs/development/libraries/libzdb/default.nix
index 4a5aa057a5cf..f3cbddf1ec41 100644
--- a/pkgs/development/libraries/libzdb/default.nix
+++ b/pkgs/development/libraries/libzdb/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec
 
   src = fetchurl
   {
-    url = "http://www.tildeslash.com/libzdb/dist/libzdb-${version}.tar.gz";
+    url = "https://www.tildeslash.com/libzdb/dist/libzdb-${version}.tar.gz";
     sha256 = "1596njvy518x7vsvsykmnk1ky82x8jxd6nmmp551y6hxn2qsn08g";
   };
 
diff --git a/pkgs/development/libraries/loudmouth/default.nix b/pkgs/development/libraries/loudmouth/default.nix
index 762d23e240a2..e014e38c3f97 100644
--- a/pkgs/development/libraries/loudmouth/default.nix
+++ b/pkgs/development/libraries/loudmouth/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "loudmouth-${version}";
 
   src = fetchurl {
-    url = "http://mcabber.com/files/loudmouth/${name}.tar.bz2";
+    url = "https://mcabber.com/files/loudmouth/${name}.tar.bz2";
     sha256 = "0b6kd5gpndl9nzis3n6hcl0ldz74bnbiypqgqa1vgb0vrcar8cjl";
   };
 
diff --git a/pkgs/development/libraries/mdds/0.12.1.nix b/pkgs/development/libraries/mdds/0.12.1.nix
index 1c6134d0480b..11bd437d377e 100644
--- a/pkgs/development/libraries/mdds/0.12.1.nix
+++ b/pkgs/development/libraries/mdds/0.12.1.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "mdds-${version}";
 
   src = fetchurl {
-    url = "http://kohei.us/files/mdds/src/mdds_${version}.tar.bz2";
+    url = "https://kohei.us/files/mdds/src/mdds_${version}.tar.bz2";
     sha256 = "0gg8mb9kxh3wggh7njj1gf90xy27p0yq2cw88wqar9hhg2fmwmi3";
   };
 
diff --git a/pkgs/development/libraries/mdds/default.nix b/pkgs/development/libraries/mdds/default.nix
index 592b6d7a6779..90d86ea9165c 100644
--- a/pkgs/development/libraries/mdds/default.nix
+++ b/pkgs/development/libraries/mdds/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "mdds-${version}";
 
   src = fetchurl {
-    url = "http://kohei.us/files/mdds/src/mdds-${version}.tar.bz2";
+    url = "https://kohei.us/files/mdds/src/mdds-${version}.tar.bz2";
     sha256 = "18g511z1lgfxrga2ld9yr95phmyfbd3ymbv4q5g5lyjn4ljcvf6w";
   };
 
diff --git a/pkgs/development/libraries/mpich2/default.nix b/pkgs/development/libraries/mpich2/default.nix
index 4b8e2b651e45..6c5a0e5279ce 100644
--- a/pkgs/development/libraries/mpich2/default.nix
+++ b/pkgs/development/libraries/mpich2/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation  rec {
   version = "3.2.1";
 
   src = fetchurl {
-    url = "http://www.mpich.org/static/downloads/${version}/mpich-${version}.tar.gz";
+    url = "https://www.mpich.org/static/downloads/${version}/mpich-${version}.tar.gz";
     sha256 = "1w9h4g7d46d9l5jbcyfxpaqzpjrc5hyvr9d0ns7278psxpr3pdax";
   };
 
diff --git a/pkgs/development/libraries/opendbx/default.nix b/pkgs/development/libraries/opendbx/default.nix
index 48ec5141e34f..20a62ef67f98 100644
--- a/pkgs/development/libraries/opendbx/default.nix
+++ b/pkgs/development/libraries/opendbx/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   name = "opendbx-1.4.6";
 
   src = fetchurl {
-    url = "http://linuxnetworks.de/opendbx/download/${name}.tar.gz";
+    url = "https://linuxnetworks.de/opendbx/download/${name}.tar.gz";
     sha256 = "0z29h6zx5f3gghkh1a0060w6wr572ci1rl2a3480znf728wa0ii2";
   };
 
diff --git a/pkgs/development/libraries/openldap/default.nix b/pkgs/development/libraries/openldap/default.nix
index 93ba3f15a09c..907f071d5c55 100644
--- a/pkgs/development/libraries/openldap/default.nix
+++ b/pkgs/development/libraries/openldap/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "openldap-2.4.45";
 
   src = fetchurl {
-    url = "http://www.openldap.org/software/download/OpenLDAP/openldap-release/${name}.tgz";
+    url = "https://www.openldap.org/software/download/OpenLDAP/openldap-release/${name}.tgz";
     sha256 = "091qvwk5dkcpp17ziabcnh3rg3m7qwzw2pihfcd1d5fdxgywzmnd";
   };
 
diff --git a/pkgs/development/libraries/openssl/default.nix b/pkgs/development/libraries/openssl/default.nix
index 31e9d661a588..0251de77d03e 100644
--- a/pkgs/development/libraries/openssl/default.nix
+++ b/pkgs/development/libraries/openssl/default.nix
@@ -12,7 +12,7 @@ let
     name = "openssl-${version}";
 
     src = fetchurl {
-      url = "http://www.openssl.org/source/${name}.tar.gz";
+      url = "https://www.openssl.org/source/${name}.tar.gz";
       inherit sha256;
     };
 
diff --git a/pkgs/development/libraries/physics/cernlib/default.nix b/pkgs/development/libraries/physics/cernlib/default.nix
index dad138c8433a..f837d807219f 100644
--- a/pkgs/development/libraries/physics/cernlib/default.nix
+++ b/pkgs/development/libraries/physics/cernlib/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "cernlib-${version}";
 
   src = fetchurl {
-    url = "http://cernlib.web.cern.ch/cernlib/download/${version}_source/tar/${version}_src.tar.gz";
+    url = "https://cernlib.web.cern.ch/cernlib/download/${version}_source/tar/${version}_src.tar.gz";
     sha256 = "0awla1rl96z82br7slcmg8ks1d2a7slk6dj79ywb871j2ksi3fky";
   };
 
diff --git a/pkgs/development/libraries/physics/fastnlo/default.nix b/pkgs/development/libraries/physics/fastnlo/default.nix
index e568e1597972..e3291907d31f 100644
--- a/pkgs/development/libraries/physics/fastnlo/default.nix
+++ b/pkgs/development/libraries/physics/fastnlo/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.3.1pre-2402";
 
   src = fetchurl {
-    url = "http://fastnlo.hepforge.org/code/v23/${name}.tar.gz";
+    url = "https://fastnlo.hepforge.org/code/v23/${name}.tar.gz";
     sha256 = "1h41xnqcz401x3zbs8i2dsb4xlhbv8i5ps0561p6y7gcyridgcbl";
   };
 
diff --git a/pkgs/development/libraries/physics/herwig/default.nix b/pkgs/development/libraries/physics/herwig/default.nix
index ce6ea4c56a89..9993060eb728 100644
--- a/pkgs/development/libraries/physics/herwig/default.nix
+++ b/pkgs/development/libraries/physics/herwig/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "7.1.3";
 
   src = fetchurl {
-    url = "http://www.hepforge.org/archive/herwig/Herwig-${version}.tar.bz2";
+    url = "https://www.hepforge.org/archive/herwig/Herwig-${version}.tar.bz2";
     sha256 = "1iq1h5ap86729c4pfkswzfh0l2v20fyvqsb15c35g0407l54wfqm";
   };
 
diff --git a/pkgs/development/libraries/physics/lhapdf/default.nix b/pkgs/development/libraries/physics/lhapdf/default.nix
index 93e0fa99c347..7f89c92772c3 100644
--- a/pkgs/development/libraries/physics/lhapdf/default.nix
+++ b/pkgs/development/libraries/physics/lhapdf/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "6.2.1";
 
   src = fetchurl {
-    url = "http://www.hepforge.org/archive/lhapdf/LHAPDF-${version}.tar.gz";
+    url = "https://www.hepforge.org/archive/lhapdf/LHAPDF-${version}.tar.gz";
     sha256 = "0bi02xcmq5as0wf0jn6i3hx0qy0hj61m02sbrbzd1gwjhpccwmvd";
   };
 
diff --git a/pkgs/development/libraries/physics/mcgrid/default.nix b/pkgs/development/libraries/physics/mcgrid/default.nix
index aabe132e73b3..32a05d10d3a6 100644
--- a/pkgs/development/libraries/physics/mcgrid/default.nix
+++ b/pkgs/development/libraries/physics/mcgrid/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.0.2";
 
   src = fetchurl {
-    url = "http://www.hepforge.org/archive/mcgrid/${name}.tar.gz";
+    url = "https://www.hepforge.org/archive/mcgrid/${name}.tar.gz";
     sha256 = "1mw82x7zqbdchnd6shj3dirsav5i2cndp2hjwb8a8xdh4xh9zvfy";
   };
 
diff --git a/pkgs/development/libraries/physics/nlojet/default.nix b/pkgs/development/libraries/physics/nlojet/default.nix
index 88fafaf3ae6e..0c9d879fbd09 100644
--- a/pkgs/development/libraries/physics/nlojet/default.nix
+++ b/pkgs/development/libraries/physics/nlojet/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "4.1.3";
 
   src = fetchurl {
-    url = "http://desy.de/~znagy/hep-programs/nlojet++/nlojet++-${version}.tar.gz";
+    url = "https://desy.de/~znagy/hep-programs/nlojet++/nlojet++-${version}.tar.gz";
     sha256 = "18qfn5kjzvnyh29x40zm2maqzfmrnay9r58n8pfpq5lcphdhhv8p";
   };
 
diff --git a/pkgs/development/libraries/physics/rivet/default.nix b/pkgs/development/libraries/physics/rivet/default.nix
index c13b659f792e..8c4a9288a15b 100644
--- a/pkgs/development/libraries/physics/rivet/default.nix
+++ b/pkgs/development/libraries/physics/rivet/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.6.0";
 
   src = fetchurl {
-    url = "http://www.hepforge.org/archive/rivet/Rivet-${version}.tar.bz2";
+    url = "https://www.hepforge.org/archive/rivet/Rivet-${version}.tar.bz2";
     sha256 = "007rwal8wx2k9gs0r6kym6ix0siz0x9l55q9myq41siirpf2jcpv";
   };
 
diff --git a/pkgs/development/libraries/physics/thepeg/default.nix b/pkgs/development/libraries/physics/thepeg/default.nix
index 0a84fe20da72..feffa5c11d54 100644
--- a/pkgs/development/libraries/physics/thepeg/default.nix
+++ b/pkgs/development/libraries/physics/thepeg/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.1.3";
 
   src = fetchurl {
-    url = "http://www.hepforge.org/archive/thepeg/ThePEG-${version}.tar.bz2";
+    url = "https://www.hepforge.org/archive/thepeg/ThePEG-${version}.tar.bz2";
     sha256 = "030wpk78mwb56iph5iqmblsxgzpydsa25bbkv07bihihfm8gds0n";
   };
 
diff --git a/pkgs/development/libraries/physics/yoda/default.nix b/pkgs/development/libraries/physics/yoda/default.nix
index 6cda6bd310be..eb34b94118a9 100644
--- a/pkgs/development/libraries/physics/yoda/default.nix
+++ b/pkgs/development/libraries/physics/yoda/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.7.0";
 
   src = fetchurl {
-    url = "http://www.hepforge.org/archive/yoda/YODA-${version}.tar.bz2";
+    url = "https://www.hepforge.org/archive/yoda/YODA-${version}.tar.bz2";
     sha256 = "0fyf6ld1klzlfmr5sl1jxzck4a0h14zfkrff8397rn1fqnqbzmmk";
   };
 
diff --git a/pkgs/development/libraries/polkit/default.nix b/pkgs/development/libraries/polkit/default.nix
index 98937308191e..2b5f7cacd4b3 100644
--- a/pkgs/development/libraries/polkit/default.nix
+++ b/pkgs/development/libraries/polkit/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   name = "polkit-0.113";
 
   src = fetchurl {
-    url = "http://www.freedesktop.org/software/polkit/releases/${name}.tar.gz";
+    url = "https://www.freedesktop.org/software/polkit/releases/${name}.tar.gz";
     sha256 = "109w86kfqrgz83g9ivggplmgc77rz8kx8646izvm2jb57h4rbh71";
   };
 
diff --git a/pkgs/development/libraries/postgis/default.nix b/pkgs/development/libraries/postgis/default.nix
index 9a72e03ef2c6..aa9a3f9fdc0a 100644
--- a/pkgs/development/libraries/postgis/default.nix
+++ b/pkgs/development/libraries/postgis/default.nix
@@ -50,7 +50,7 @@ in stdenv.mkDerivation rec {
   name = "postgis-${version}";
 
   src = fetchurl {
-    url = "http://download.osgeo.org/postgis/source/postgis-${builtins.toString version}.tar.gz";
+    url = "https://download.osgeo.org/postgis/source/postgis-${builtins.toString version}.tar.gz";
     inherit sha256;
   };
 
diff --git a/pkgs/development/libraries/proj/default.nix b/pkgs/development/libraries/proj/default.nix
index b92aa49a092e..0ebf299a8bfb 100644
--- a/pkgs/development/libraries/proj/default.nix
+++ b/pkgs/development/libraries/proj/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "proj-4.9.3";
 
   src = fetchurl {
-    url = http://download.osgeo.org/proj/proj-4.9.3.tar.gz;
+    url = https://download.osgeo.org/proj/proj-4.9.3.tar.gz;
     sha256 = "1xw5f427xk9p2nbsj04j6m5zyjlyd66sbvl2bkg8hd1kx8pm9139";
   };
 
diff --git a/pkgs/development/libraries/rabbitmq-java-client/default.nix b/pkgs/development/libraries/rabbitmq-java-client/default.nix
index a1708ba59c35..96a2347c50fa 100644
--- a/pkgs/development/libraries/rabbitmq-java-client/default.nix
+++ b/pkgs/development/libraries/rabbitmq-java-client/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "rabbitmq-java-client-3.3.4";
 
   src = fetchurl {
-    url = "http://www.rabbitmq.com/releases/rabbitmq-java-client/v3.3.4/rabbitmq-java-client-3.3.4.tar.gz";
+    url = "https://www.rabbitmq.com/releases/rabbitmq-java-client/v3.3.4/rabbitmq-java-client-3.3.4.tar.gz";
     sha256 = "03kspkgzzjsbq6f8yl2zj5m30qwgxv3l58hrbf6gcgxb5rpfk6sh";
   };
 
diff --git a/pkgs/development/libraries/readosm/default.nix b/pkgs/development/libraries/readosm/default.nix
index 7faee7e69a2e..5a4306a63a78 100644
--- a/pkgs/development/libraries/readosm/default.nix
+++ b/pkgs/development/libraries/readosm/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "readosm-1.1.0";
 
   src = fetchurl {
-    url = "http://www.gaia-gis.it/gaia-sins/readosm-sources/${name}.tar.gz";
+    url = "https://www.gaia-gis.it/gaia-sins/readosm-sources/${name}.tar.gz";
     sha256 = "1v20pnda67imjd70fn0zw30aar525xicy3d3v49md5cvqklws265";
   };
 
diff --git a/pkgs/development/libraries/rep-gtk/default.nix b/pkgs/development/libraries/rep-gtk/default.nix
index 5629164f160a..681fc3a012fe 100644
--- a/pkgs/development/libraries/rep-gtk/default.nix
+++ b/pkgs/development/libraries/rep-gtk/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
   sourceName = "rep-gtk_${version}";
 
   src = fetchurl {
-    url = "http://download.tuxfamily.org/librep/rep-gtk/${sourceName}.tar.xz";
+    url = "https://download.tuxfamily.org/librep/rep-gtk/${sourceName}.tar.xz";
     sha256 = "0hgkkywm8zczir3lqr727bn7ybgg71x9cwj1av8fykkr8pdpard9";
   };
 
diff --git a/pkgs/development/libraries/schroedinger/default.nix b/pkgs/development/libraries/schroedinger/default.nix
index 167fe4190764..25126edbc0f4 100644
--- a/pkgs/development/libraries/schroedinger/default.nix
+++ b/pkgs/development/libraries/schroedinger/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   src = fetchurl {
     urls = [
       http://diracvideo.org/download/schroedinger/schroedinger-1.0.11.tar.gz
-      http://download.videolan.org/contrib/schroedinger-1.0.11.tar.gz
+      https://download.videolan.org/contrib/schroedinger-1.0.11.tar.gz
     ];
     sha256 = "04prr667l4sn4zx256v1z36a0nnkxfdqyln48rbwlamr6l3jlmqy";
   };
diff --git a/pkgs/development/libraries/science/math/ipopt/default.nix b/pkgs/development/libraries/science/math/ipopt/default.nix
index 0af00f75d994..4a6aabb447f3 100644
--- a/pkgs/development/libraries/science/math/ipopt/default.nix
+++ b/pkgs/development/libraries/science/math/ipopt/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "3.12.10";
 
   src = fetchurl {
-    url = "http://www.coin-or.org/download/source/Ipopt/Ipopt-${version}.zip";
+    url = "https://www.coin-or.org/download/source/Ipopt/Ipopt-${version}.zip";
     sha256 = "004pd90knnnzcx727knb7ffkabb1ggbskb8s607bfvfgdd7wlli9";
   };
 
diff --git a/pkgs/development/libraries/science/math/magma/default.nix b/pkgs/development/libraries/science/math/magma/default.nix
index 26ec501f1a7e..8444d88809af 100644
--- a/pkgs/development/libraries/science/math/magma/default.nix
+++ b/pkgs/development/libraries/science/math/magma/default.nix
@@ -7,7 +7,7 @@ let version = "2.0.2";
 in stdenv.mkDerivation {
   name = "magma-${version}";
   src = fetchurl {
-    url = "http://icl.cs.utk.edu/projectsfiles/magma/downloads/magma-${version}.tar.gz";
+    url = "https://icl.cs.utk.edu/projectsfiles/magma/downloads/magma-${version}.tar.gz";
     sha256 = "0w3z6k1npfh0d3r8kpw873f1m7lny29sz2bvvfxzk596d4h083lk";
     name = "magma-${version}.tar.gz";
   };
diff --git a/pkgs/development/libraries/serd/default.nix b/pkgs/development/libraries/serd/default.nix
index 96449a8ed962..ac9183cffe9b 100644
--- a/pkgs/development/libraries/serd/default.nix
+++ b/pkgs/development/libraries/serd/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.28.0";
 
   src = fetchurl {
-    url = "http://download.drobilla.net/${name}.tar.bz2";
+    url = "https://download.drobilla.net/${name}.tar.bz2";
     sha256 = "1v4ai4zyj1q3255nghicns9817jkwb3bh60ssprsjmnjfj41mwhx";
   };
 
diff --git a/pkgs/development/libraries/shapelib/default.nix b/pkgs/development/libraries/shapelib/default.nix
index 3234d1bb89bf..09d3efa64b2b 100644
--- a/pkgs/development/libraries/shapelib/default.nix
+++ b/pkgs/development/libraries/shapelib/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "shapelib-1.4.1";
 
   src = fetchurl {
-    url = "http://download.osgeo.org/shapelib/${name}.tar.gz";
+    url = "https://download.osgeo.org/shapelib/${name}.tar.gz";
     sha256 = "1cr3b5jfglwisbyzj7fnxp9xysqad0fcmcqvqaja6qap6qblijd4";
   };
 
diff --git a/pkgs/development/libraries/slang/default.nix b/pkgs/development/libraries/slang/default.nix
index bcce457e78e8..ec59ae0e819e 100644
--- a/pkgs/development/libraries/slang/default.nix
+++ b/pkgs/development/libraries/slang/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation rec {
   name = "slang-2.3.2";
   src = fetchurl {
-    url = "http://www.jedsoft.org/releases/slang/${name}.tar.bz2";
+    url = "https://www.jedsoft.org/releases/slang/${name}.tar.bz2";
     sha256 = "06p379fqn6w38rdpqi98irxi2bf4llb0rja3dlgkqz7nqh7kp7pw";
   };
 
diff --git a/pkgs/development/libraries/slib/default.nix b/pkgs/development/libraries/slib/default.nix
index 233ba91d299a..665f025ffcf3 100644
--- a/pkgs/development/libraries/slib/default.nix
+++ b/pkgs/development/libraries/slib/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "slib-3b5";
 
   src = fetchurl {
-    url = "http://groups.csail.mit.edu/mac/ftpdir/scm/${name}.zip";
+    url = "https://groups.csail.mit.edu/mac/ftpdir/scm/${name}.zip";
     sha256 = "0q0p2d53p8qw2592yknzgy2y1p5a9k7ppjx0cfrbvk6242c4mdpq";
   };
 
diff --git a/pkgs/development/libraries/snack/default.nix b/pkgs/development/libraries/snack/default.nix
index 17195febe133..1b5564dc1590 100644
--- a/pkgs/development/libraries/snack/default.nix
+++ b/pkgs/development/libraries/snack/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   name = "snack-2.2.10";
 
   src = fetchurl {
-    url = http://www.speech.kth.se/snack/dist/snack2.2.10.tar.gz;
+    url = https://www.speech.kth.se/snack/dist/snack2.2.10.tar.gz;
     sha256 = "07p89jv9qnjqkszws9sssq93ayvwpdnkcxrvyicbm4mb8x2pdzjb";
   };
 
diff --git a/pkgs/development/libraries/sord/default.nix b/pkgs/development/libraries/sord/default.nix
index 995ac631580d..207c6f2d30a1 100644
--- a/pkgs/development/libraries/sord/default.nix
+++ b/pkgs/development/libraries/sord/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.16.0";
 
   src = fetchurl {
-    url = "http://download.drobilla.net/${name}.tar.bz2";
+    url = "https://download.drobilla.net/${name}.tar.bz2";
     sha256 = "0nh3i867g9z4kdlnk82cg2kcw8r02qgifxvkycvzb4vfjv4v4g4x";
   };
 
diff --git a/pkgs/development/libraries/soundtouch/default.nix b/pkgs/development/libraries/soundtouch/default.nix
index c338d6762a4d..95a97f30b6e6 100644
--- a/pkgs/development/libraries/soundtouch/default.nix
+++ b/pkgs/development/libraries/soundtouch/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   pName = "soundtouch";
   name = "${pName}-2.0.0";
   src = fetchurl {
-    url = "http://www.surina.net/soundtouch/${name}.tar.gz";
+    url = "https://www.surina.net/soundtouch/${name}.tar.gz";
     sha256 = "09cxr02mfyj2bg731bj0i9hh565x8l9p91aclxs8wpqv8b8zf96j";
   };
 
diff --git a/pkgs/development/libraries/spandsp/default.nix b/pkgs/development/libraries/spandsp/default.nix
index ea3013c78bcb..be2fc503e390 100644
--- a/pkgs/development/libraries/spandsp/default.nix
+++ b/pkgs/development/libraries/spandsp/default.nix
@@ -3,7 +3,7 @@ stdenv.mkDerivation rec {
   version = "0.0.6";
   name = "spandsp-${version}";
   src=fetchurl {
-    url = "http://www.soft-switch.org/downloads/spandsp/spandsp-${version}.tar.gz";
+    url = "https://www.soft-switch.org/downloads/spandsp/spandsp-${version}.tar.gz";
     sha256 = "0rclrkyspzk575v8fslzjpgp4y2s4x7xk3r55ycvpi4agv33l1fc";
   };
   buildInputs = [];
diff --git a/pkgs/development/libraries/spatialite-tools/default.nix b/pkgs/development/libraries/spatialite-tools/default.nix
index ff461f1b8e64..9070423d8c76 100644
--- a/pkgs/development/libraries/spatialite-tools/default.nix
+++ b/pkgs/development/libraries/spatialite-tools/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "spatialite-tools-4.1.1";
 
   src = fetchurl {
-    url = "http://www.gaia-gis.it/gaia-sins/spatialite-tools-sources/${name}.tar.gz";
+    url = "https://www.gaia-gis.it/gaia-sins/spatialite-tools-sources/${name}.tar.gz";
     sha256 = "14aqmhvab63ydbb82fglsbig7jw1wmci8jjvci07aavdhvh1pyrv";
   };
 
diff --git a/pkgs/development/libraries/spice-gtk/default.nix b/pkgs/development/libraries/spice-gtk/default.nix
index 21359c4f0d0b..aeab43c889d6 100644
--- a/pkgs/development/libraries/spice-gtk/default.nix
+++ b/pkgs/development/libraries/spice-gtk/default.nix
@@ -35,7 +35,7 @@ in stdenv.mkDerivation rec {
   outputs = [ "out" "dev" ];
 
   src = fetchurl {
-    url = "http://www.spice-space.org/download/gtk/${name}.tar.bz2";
+    url = "https://www.spice-space.org/download/gtk/${name}.tar.bz2";
     sha256 = "1vknp72pl6v6nf3dphhwp29hk6gv787db2pmyg4m312z2q0hwwp9";
   };
 
diff --git a/pkgs/development/libraries/spice-protocol/default.nix b/pkgs/development/libraries/spice-protocol/default.nix
index 19b68a0c43de..fc337f22b56f 100644
--- a/pkgs/development/libraries/spice-protocol/default.nix
+++ b/pkgs/development/libraries/spice-protocol/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "spice-protocol-0.12.14";
 
   src = fetchurl {
-    url = "http://www.spice-space.org/download/releases/${name}.tar.bz2";
+    url = "https://www.spice-space.org/download/releases/${name}.tar.bz2";
     sha256 = "170ckpgazvqv7hxy209myg67pqnd6c0gvr4ysbqgsfch6320nd90";
   };
 
diff --git a/pkgs/development/libraries/spice/default.nix b/pkgs/development/libraries/spice/default.nix
index ee54ad555537..0b815f9095f9 100644
--- a/pkgs/development/libraries/spice/default.nix
+++ b/pkgs/development/libraries/spice/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   name = "spice-0.14.0";
 
   src = fetchurl {
-    url = "http://www.spice-space.org/download/releases/${name}.tar.bz2";
+    url = "https://www.spice-space.org/download/releases/${name}.tar.bz2";
     sha256 = "0j5q7cp5p95jk8fp48gz76rz96lifimdsx1wnpmfal0nnnar9nrs";
   };
 
diff --git a/pkgs/development/libraries/startup-notification/default.nix b/pkgs/development/libraries/startup-notification/default.nix
index ce4fca6da70d..fc771a493b6d 100644
--- a/pkgs/development/libraries/startup-notification/default.nix
+++ b/pkgs/development/libraries/startup-notification/default.nix
@@ -6,7 +6,7 @@ in
 stdenv.mkDerivation {
   name = "libstartup-notification-${version}";
   src = fetchurl {
-    url = "http://www.freedesktop.org/software/startup-notification/releases/startup-notification-${version}.tar.gz";
+    url = "https://www.freedesktop.org/software/startup-notification/releases/startup-notification-${version}.tar.gz";
     sha256 = "3c391f7e930c583095045cd2d10eb73a64f085c7fde9d260f2652c7cb3cfbe4a";
   };
 
diff --git a/pkgs/development/libraries/strigi/default.nix b/pkgs/development/libraries/strigi/default.nix
index 362881a2f42b..63060bf55533 100644
--- a/pkgs/development/libraries/strigi/default.nix
+++ b/pkgs/development/libraries/strigi/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   version = "0.7.8";
 
   src = fetchurl {
-    url = "http://www.vandenoever.info/software/strigi/${name}.tar.bz2";
+    url = "https://www.vandenoever.info/software/strigi/${name}.tar.bz2";
     sha256 = "12grxzqwnvbyqw7q1gnz42lypadxmq89vk2qpxczmpmc4nk63r23";
   };
 
diff --git a/pkgs/development/libraries/swiften/default.nix b/pkgs/development/libraries/swiften/default.nix
index 810420fe6b76..1759258e6664 100644
--- a/pkgs/development/libraries/swiften/default.nix
+++ b/pkgs/development/libraries/swiften/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   propagatedBuildInputs = [ openssl boost ];
 
   src = fetchurl {
-    url    = "http://swift.im/downloads/releases/swift-${version}/swift-${version}.tar.gz";
+    url    = "https://swift.im/downloads/releases/swift-${version}/swift-${version}.tar.gz";
     sha256 = "0w0aiszjd58ynxpacwcgf052zpmbpcym4dhci64vbfgch6wryz0w";
   };
   
diff --git a/pkgs/development/libraries/sword/default.nix b/pkgs/development/libraries/sword/default.nix
index 13497f7727f4..0c3bb3b13064 100644
--- a/pkgs/development/libraries/sword/default.nix
+++ b/pkgs/development/libraries/sword/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   version = "1.7.4";
 
   src = fetchurl {
-    url = "http://www.crosswire.org/ftpmirror/pub/sword/source/v1.7/${name}.tar.gz";
+    url = "https://www.crosswire.org/ftpmirror/pub/sword/source/v1.7/${name}.tar.gz";
     sha256 = "0g91kpfkwccvdikddffdbzd6glnp1gdvkx4vh04iyz10bb7shpcr";
   };
 
diff --git a/pkgs/development/libraries/telepathy/farstream/default.nix b/pkgs/development/libraries/telepathy/farstream/default.nix
index 41308a7ef4ec..fae51aea477e 100644
--- a/pkgs/development/libraries/telepathy/farstream/default.nix
+++ b/pkgs/development/libraries/telepathy/farstream/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   pname = "telepathy-farstream";
 
   src = fetchurl {
-    url = "http://telepathy.freedesktop.org/releases/${pname}/${name}.tar.gz";
+    url = "https://telepathy.freedesktop.org/releases/${pname}/${name}.tar.gz";
     sha256 = "02ky12bb92prr5f6xmvmfq4yz2lj33li6nj4829a98hk5pr9k83g";
   };
 
diff --git a/pkgs/development/libraries/telepathy/qt/default.nix b/pkgs/development/libraries/telepathy/qt/default.nix
index 90dd47c11e2f..24dc3667d172 100644
--- a/pkgs/development/libraries/telepathy/qt/default.nix
+++ b/pkgs/development/libraries/telepathy/qt/default.nix
@@ -7,7 +7,7 @@ in stdenv.mkDerivation rec {
   name = "telepathy-qt-0.9.7";
 
   src = fetchurl {
-    url = "http://telepathy.freedesktop.org/releases/telepathy-qt/${name}.tar.gz";
+    url = "https://telepathy.freedesktop.org/releases/telepathy-qt/${name}.tar.gz";
     sha256 = "0krxd4hhfx6r0ja19wh3848j7gn1rv8jrnakgmkbmi7bww5x7fi1";
   };
 
diff --git a/pkgs/development/libraries/thrift/default.nix b/pkgs/development/libraries/thrift/default.nix
index 45e5174ed573..cb200b82e207 100644
--- a/pkgs/development/libraries/thrift/default.nix
+++ b/pkgs/development/libraries/thrift/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   version = "0.11.0";
 
   src = fetchurl {
-    url = "http://archive.apache.org/dist/thrift/${version}/${name}.tar.gz";
+    url = "https://archive.apache.org/dist/thrift/${version}/${name}.tar.gz";
     sha256 = "1hk0zb9289gf920rdl0clmwqx6kvygz92nj01lqrhd2arfv3ibf4";
   };
 
diff --git a/pkgs/development/libraries/tre/default.nix b/pkgs/development/libraries/tre/default.nix
index 25d7849b1b4b..12f7e4c765d2 100644
--- a/pkgs/development/libraries/tre/default.nix
+++ b/pkgs/development/libraries/tre/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation rec {
   name = "tre-0.8.0";
   src = fetchurl {
-    url = "http://laurikari.net/tre/${name}.tar.gz";
+    url = "https://laurikari.net/tre/${name}.tar.gz";
     sha256 = "1pd7qsa7vc3ybdc6h2gr4pm9inypjysf92kab945gg4qa6jp11my";
   };
 
diff --git a/pkgs/development/libraries/ucl/default.nix b/pkgs/development/libraries/ucl/default.nix
index aa983b1394b1..933a3afef35b 100644
--- a/pkgs/development/libraries/ucl/default.nix
+++ b/pkgs/development/libraries/ucl/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "ucl-1.03";
   src = fetchurl {
-    url = http://www.oberhumer.com/opensource/ucl/download/ucl-1.03.tar.gz;
+    url = https://www.oberhumer.com/opensource/ucl/download/ucl-1.03.tar.gz;
     sha256 = "b865299ffd45d73412293369c9754b07637680e5c826915f097577cd27350348";
   };
 
diff --git a/pkgs/development/libraries/unicap/default.nix b/pkgs/development/libraries/unicap/default.nix
index 604a1b7012af..1aa5e6717021 100644
--- a/pkgs/development/libraries/unicap/default.nix
+++ b/pkgs/development/libraries/unicap/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version="0.9.12";
 
   src = fetchurl {
-    url = "http://www.unicap-imaging.org/downloads/${name}.tar.gz";
+    url = "https://www.unicap-imaging.org/downloads/${name}.tar.gz";
     sha256 = "05zcnnm4dfc6idihfi0fq5xka6x86zi89wip2ca19yz768sd33s9";
   };
 
diff --git a/pkgs/development/libraries/usbredir/default.nix b/pkgs/development/libraries/usbredir/default.nix
index 515c3b2ca3b9..25ddfb355241 100644
--- a/pkgs/development/libraries/usbredir/default.nix
+++ b/pkgs/development/libraries/usbredir/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.7.1";
 
   src = fetchurl {
-    url = "http://spice-space.org/download/usbredir/${name}.tar.bz2";
+    url = "https://spice-space.org/download/usbredir/${name}.tar.bz2";
     sha256 = "1wsnmk4wjpdhbn1zaxg6bmyxspcki2zgy0am9lk037rnl4krwzj0";
   };
 
diff --git a/pkgs/development/libraries/vaapi-vdpau/default.nix b/pkgs/development/libraries/vaapi-vdpau/default.nix
index 013af68cb6c4..07ca9d2e62e1 100644
--- a/pkgs/development/libraries/vaapi-vdpau/default.nix
+++ b/pkgs/development/libraries/vaapi-vdpau/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   name = "libva-vdpau-driver-0.7.4";
   
   src = fetchurl {
-    url = "http://www.freedesktop.org/software/vaapi/releases/libva-vdpau-driver/${name}.tar.bz2";
+    url = "https://www.freedesktop.org/software/vaapi/releases/libva-vdpau-driver/${name}.tar.bz2";
     sha256 = "1fcvgshzyc50yb8qqm6v6wn23ghimay23ci0p8sm8gxcy211jp0m";
   };
 
diff --git a/pkgs/development/libraries/vsqlite/default.nix b/pkgs/development/libraries/vsqlite/default.nix
index bfb07c2df337..e706c730ddd3 100644
--- a/pkgs/development/libraries/vsqlite/default.nix
+++ b/pkgs/development/libraries/vsqlite/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.3.13";
 
   src = fetchurl {
-    url = "http://evilissimo.fedorapeople.org/releases/vsqlite--/0.3.13/vsqlite++-${version}.tar.gz";
+    url = "https://evilissimo.fedorapeople.org/releases/vsqlite--/0.3.13/vsqlite++-${version}.tar.gz";
     sha256 = "17fkj0d2jh0xkjpcayhs1xvbnh1d69f026i7vs1zqnbiwbkpz237";
   };
 
diff --git a/pkgs/development/libraries/wayland/1.9.nix b/pkgs/development/libraries/wayland/1.9.nix
index efb365958eb8..d832becbed88 100644
--- a/pkgs/development/libraries/wayland/1.9.nix
+++ b/pkgs/development/libraries/wayland/1.9.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
   version = "1.9.0";
 
   src = fetchurl {
-    url = "http://wayland.freedesktop.org/releases/${name}.tar.xz";
+    url = "https://wayland.freedesktop.org/releases/${name}.tar.xz";
     sha256 = "1yhy62vkbq8j8c9zaa6yzvn75cd99kfa8n2zfdwl80x019r711ww";
   };
 
diff --git a/pkgs/development/libraries/wayland/protocols.nix b/pkgs/development/libraries/wayland/protocols.nix
index 4bb7cd153cf3..33bce4d6216f 100644
--- a/pkgs/development/libraries/wayland/protocols.nix
+++ b/pkgs/development/libraries/wayland/protocols.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   version = "1.14";
 
   src = fetchurl {
-    url = "http://wayland.freedesktop.org/releases/${name}.tar.xz";
+    url = "https://wayland.freedesktop.org/releases/${name}.tar.xz";
     sha256 = "1xknjcfhqvdi1s4iq4kk1q61fg2rar3g8q4vlqarpd324imqjj4n";
   };
 
diff --git a/pkgs/development/libraries/webkitgtk/2.20.nix b/pkgs/development/libraries/webkitgtk/2.20.nix
index d3fffa2dd32f..e234e3e66ad9 100644
--- a/pkgs/development/libraries/webkitgtk/2.20.nix
+++ b/pkgs/development/libraries/webkitgtk/2.20.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   };
 
   src = fetchurl {
-    url = "http://webkitgtk.org/releases/${name}.tar.xz";
+    url = "https://webkitgtk.org/releases/${name}.tar.xz";
     sha256 = "1n0dy94bm7wvxln4jis1gp8plv8n4a01g41724zsf5psg1yk16sp";
   };
 
diff --git a/pkgs/development/libraries/webkitgtk/2.4.nix b/pkgs/development/libraries/webkitgtk/2.4.nix
index 39a76a74711f..1a17ae53313b 100644
--- a/pkgs/development/libraries/webkitgtk/2.4.nix
+++ b/pkgs/development/libraries/webkitgtk/2.4.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   };
 
   src = fetchurl {
-    url = "http://webkitgtk.org/releases/${name}.tar.xz";
+    url = "https://webkitgtk.org/releases/${name}.tar.xz";
     sha256 = "1xsvnvyvlywwyf6m9ainpsg87jkxjmd37q6zgz9cxb7v3c2ym2jq";
   };
 
diff --git a/pkgs/development/libraries/webrtc-audio-processing/default.nix b/pkgs/development/libraries/webrtc-audio-processing/default.nix
index 529091518eb6..056ab8c51387 100644
--- a/pkgs/development/libraries/webrtc-audio-processing/default.nix
+++ b/pkgs/development/libraries/webrtc-audio-processing/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "webrtc-audio-processing-0.3";
 
   src = fetchurl {
-    url = "http://freedesktop.org/software/pulseaudio/webrtc-audio-processing/${name}.tar.xz";
+    url = "https://freedesktop.org/software/pulseaudio/webrtc-audio-processing/${name}.tar.xz";
     sha256 = "1yl0187xjh1j2zkb7v9cs9i868zcaj23pzn4a36qhzam9wfjjvkm";
   };
 
diff --git a/pkgs/development/libraries/x264/default.nix b/pkgs/development/libraries/x264/default.nix
index 06ed123c7356..276f509772c2 100644
--- a/pkgs/development/libraries/x264/default.nix
+++ b/pkgs/development/libraries/x264/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "x264-${version}";
 
   src = fetchurl {
-    url = "http://download.videolan.org/x264/snapshots/x264-snapshot-${version}-stable.tar.bz2";
+    url = "https://download.videolan.org/x264/snapshots/x264-snapshot-${version}-stable.tar.bz2";
     sha256 = "01sgk1ps4qfifdnblwa3fxnd8ah6n6zbmfc1sy09cgqcdgzxgj0z";
   };
 
diff --git a/pkgs/development/libraries/xapian/default.nix b/pkgs/development/libraries/xapian/default.nix
index 482c765dcda9..5dd81af2b1af 100644
--- a/pkgs/development/libraries/xapian/default.nix
+++ b/pkgs/development/libraries/xapian/default.nix
@@ -7,7 +7,7 @@ let
     passthru = { inherit version; };
 
     src = fetchurl {
-      url = "http://oligarchy.co.uk/xapian/${version}/xapian-core-${version}.tar.xz";
+      url = "https://oligarchy.co.uk/xapian/${version}/xapian-core-${version}.tar.xz";
       inherit sha256;
     };
 
diff --git a/pkgs/development/libraries/xapian/tools/omega/default.nix b/pkgs/development/libraries/xapian/tools/omega/default.nix
index 17855011297e..1203f19d6c82 100644
--- a/pkgs/development/libraries/xapian/tools/omega/default.nix
+++ b/pkgs/development/libraries/xapian/tools/omega/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   inherit (xapian) version;
 
   src = fetchurl {
-    url = "http://oligarchy.co.uk/xapian/${version}/xapian-omega-${version}.tar.xz";
+    url = "https://oligarchy.co.uk/xapian/${version}/xapian-omega-${version}.tar.xz";
     sha256 = "0zji8ckp4h5xdy2wbir3lvk680w1g1l4h5swmaxsx7ah12lkrjcr";
   };
 
diff --git a/pkgs/development/libraries/xml-security-c/default.nix b/pkgs/development/libraries/xml-security-c/default.nix
index bbbf9af29e58..fec4bbe8efe2 100644
--- a/pkgs/development/libraries/xml-security-c/default.nix
+++ b/pkgs/development/libraries/xml-security-c/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.7.3";
 
   src = fetchurl {
-    url = "http://www.apache.org/dist/santuario/c-library/${name}.tar.gz";
+    url = "https://www.apache.org/dist/santuario/c-library/${name}.tar.gz";
     sha256 = "e5226e7319d44f6fd9147a13fb853f5c711b9e75bf60ec273a0ef8a190592583";
   };
 
diff --git a/pkgs/development/libraries/xmlsec/default.nix b/pkgs/development/libraries/xmlsec/default.nix
index e17ac6d15075..94f1d187267e 100644
--- a/pkgs/development/libraries/xmlsec/default.nix
+++ b/pkgs/development/libraries/xmlsec/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
   name = "xmlsec-${version}";
 
   src = fetchurl {
-    url = "http://www.aleksey.com/xmlsec/download/xmlsec1-${version}.tar.gz";
+    url = "https://www.aleksey.com/xmlsec/download/xmlsec1-${version}.tar.gz";
     sha256 = "0l1dk344rn3j2vnj13daz72xd8j1msvzhg82n2il5ji0qz4pd0ld";
   };
 
diff --git a/pkgs/development/libraries/xsd/default.nix b/pkgs/development/libraries/xsd/default.nix
index bef2e46e0736..051a194af98e 100644
--- a/pkgs/development/libraries/xsd/default.nix
+++ b/pkgs/development/libraries/xsd/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
   version = "4.0.0";
 
   src = fetchurl {
-    url = "http://codesynthesis.com/download/xsd/4.0/xsd-4.0.0+dep.tar.bz2";
+    url = "https://codesynthesis.com/download/xsd/4.0/xsd-4.0.0+dep.tar.bz2";
     sha256 = "05wqhmd5cd4pdky8i8qysnh96d2h16ly8r73whmbxkajiyf2m9gc";
   };
 
diff --git a/pkgs/development/libraries/zlib/default.nix b/pkgs/development/libraries/zlib/default.nix
index de2e0b62f9e2..b8537896d791 100644
--- a/pkgs/development/libraries/zlib/default.nix
+++ b/pkgs/development/libraries/zlib/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     urls =
-      [ "http://www.zlib.net/fossils/${name}.tar.gz"  # stable archive path
+      [ "https://www.zlib.net/fossils/${name}.tar.gz"  # stable archive path
         "mirror://sourceforge/libpng/zlib/${version}/${name}.tar.gz"
       ];
     sha256 = "c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1";
diff --git a/pkgs/development/misc/amdapp-sdk/default.nix b/pkgs/development/misc/amdapp-sdk/default.nix
index 84020a5ac2d5..7da0fc148d42 100644
--- a/pkgs/development/misc/amdapp-sdk/default.nix
+++ b/pkgs/development/misc/amdapp-sdk/default.nix
@@ -26,7 +26,7 @@ let
     };
 
     "2.8" = {
-      url = "http://developer.amd.com/wordpress/media/2012/11/AMD-APP-SDK-v2.8-lnx${bits}.tgz";
+      url = "https://developer.amd.com/wordpress/media/2012/11/AMD-APP-SDK-v2.8-lnx${bits}.tgz";
       x86 = "99610737f21b2f035e0eac4c9e776446cc4378a614c7667de03a82904ab2d356";
       x86_64 = "d9c120367225bb1cd21abbcf77cb0a69cfb4bb6932d0572990104c566aab9681";
 
diff --git a/pkgs/development/mobile/androidenv/androidsdk.nix b/pkgs/development/mobile/androidenv/androidsdk.nix
index a90c9f8476e3..8d9f87b6d079 100644
--- a/pkgs/development/mobile/androidenv/androidsdk.nix
+++ b/pkgs/development/mobile/androidenv/androidsdk.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   src = if (stdenv.system == "i686-linux" || stdenv.system == "x86_64-linux")
     then fetchurl {
-      url = "http://dl.google.com/android/repository/tools_r${version}-linux.zip";
+      url = "https://dl.google.com/android/repository/tools_r${version}-linux.zip";
       sha256 = "0gnk49pkwy4m0nqwm1xnf3w4mfpi9w0kk7841xlawpwbkj0icxap";
     }
     else if stdenv.system == "x86_64-darwin" then fetchurl {
diff --git a/pkgs/development/tools/analysis/egypt/default.nix b/pkgs/development/tools/analysis/egypt/default.nix
index a7f29017fbe0..07bcd57a121a 100644
--- a/pkgs/development/tools/analysis/egypt/default.nix
+++ b/pkgs/development/tools/analysis/egypt/default.nix
@@ -6,7 +6,7 @@ buildPerlPackage rec {
 
   src = fetchurl {
     sha256 = "0r0wj6v8z9fzlh9pb5617kyjdf92ppmlbzajaarrq729bbb6ln5m";
-    url = "http://www.gson.org/egypt/download/${name}.tar.gz";
+    url = "https://www.gson.org/egypt/download/${name}.tar.gz";
   };
 
   outputs = [ "out" ];
diff --git a/pkgs/development/tools/analysis/radare/default.nix b/pkgs/development/tools/analysis/radare/default.nix
index f2079b2b5a10..b174d6c069b7 100644
--- a/pkgs/development/tools/analysis/radare/default.nix
+++ b/pkgs/development/tools/analysis/radare/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   name = "radare-1.5.2";
 
   src = fetchurl {
-    url = "http://radare.org/get/${name}.tar.gz";
+    url = "https://radare.org/get/${name}.tar.gz";
     sha256 = "1qdrmcnzfvfvqb27c7pknwm8jl2hqa6c4l66wzyddwlb8yjm46hd";
   };
 
diff --git a/pkgs/development/tools/analysis/radare/ired.nix b/pkgs/development/tools/analysis/radare/ired.nix
index a2d135d44841..aec13296bdaa 100644
--- a/pkgs/development/tools/analysis/radare/ired.nix
+++ b/pkgs/development/tools/analysis/radare/ired.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "ired-0.4";
 
   src = fetchurl {
-    url = "http://radare.org/get/${name}.tar.gz";
+    url = "https://radare.org/get/${name}.tar.gz";
     sha256 = "0wya1ylc6adqg4qw5fi8aspc5d1yr27x9r2vpy133qxzia9qv3mm";
   };
   
diff --git a/pkgs/development/tools/cdecl/default.nix b/pkgs/development/tools/cdecl/default.nix
index c5bccf6ddae6..388f6b0db439 100644
--- a/pkgs/development/tools/cdecl/default.nix
+++ b/pkgs/development/tools/cdecl/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "cdecl-2.5";
   src = fetchurl {
-    url = "http://www.cdecl.org/files/cdecl-blocks-2.5.tar.gz";
+    url = "https://www.cdecl.org/files/cdecl-blocks-2.5.tar.gz";
     sha256 = "1b7k0ra30hh8mg8fqv0f0yzkaac6lfg6n376drgbpxg4wwml1rly";
   };
 
diff --git a/pkgs/development/tools/devtodo/default.nix b/pkgs/development/tools/devtodo/default.nix
index a0b0ee571d95..dcaa43156699 100644
--- a/pkgs/development/tools/devtodo/default.nix
+++ b/pkgs/development/tools/devtodo/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.1.20";
 
   src = fetchurl {
-    url = "http://swapoff.org/files/devtodo/${name}.tar.gz";
+    url = "https://swapoff.org/files/devtodo/${name}.tar.gz";
     sha256 = "029y173njydzlznxmdizrrz4wcky47vqhl87fsb7xjcz9726m71p";
   };
 
diff --git a/pkgs/development/tools/mdk/default.nix b/pkgs/development/tools/mdk/default.nix
index 37c5dab8ce87..8b5bea7ac6ce 100644
--- a/pkgs/development/tools/mdk/default.nix
+++ b/pkgs/development/tools/mdk/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "gnu-mdk-1.2.9";
   src = fetchurl {
-    url = http://ftp.gnu.org/gnu/mdk/v1.2.9/mdk-1.2.9.tar.gz;
+    url = https://ftp.gnu.org/gnu/mdk/v1.2.9/mdk-1.2.9.tar.gz;
     sha256 = "0c24wzrzbk0l4z1p5nnxihaqra75amwmw59va44554infkfms9kc";
   };
   nativeBuildInputs = [ pkgconfig ];
diff --git a/pkgs/development/tools/misc/babeltrace/default.nix b/pkgs/development/tools/misc/babeltrace/default.nix
index 48cf4b31a176..b2130118fed9 100644
--- a/pkgs/development/tools/misc/babeltrace/default.nix
+++ b/pkgs/development/tools/misc/babeltrace/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "babeltrace-1.5.5";
 
   src = fetchurl {
-    url = "http://www.efficios.com/files/babeltrace/${name}.tar.bz2";
+    url = "https://www.efficios.com/files/babeltrace/${name}.tar.bz2";
     sha256 = "1b78fam1gbsalga5pppn8ka461q35a9svz3mlbv82ssakdw4d4a0";
   };
 
diff --git a/pkgs/development/tools/misc/cgdb/default.nix b/pkgs/development/tools/misc/cgdb/default.nix
index a5ad3910f3f0..32c888b7e62f 100644
--- a/pkgs/development/tools/misc/cgdb/default.nix
+++ b/pkgs/development/tools/misc/cgdb/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.7.0";
 
   src = fetchurl {
-    url = "http://cgdb.me/files/${name}.tar.gz";
+    url = "https://cgdb.me/files/${name}.tar.gz";
     sha256 = "08slzg3702v5nivjhdx2bciqxc5vqcn8pc4i4lsgkcwdcrj94ymz";
   };
 
diff --git a/pkgs/development/tools/misc/creduce/default.nix b/pkgs/development/tools/misc/creduce/default.nix
index cbf5883b2973..a3c5fd7f009c 100644
--- a/pkgs/development/tools/misc/creduce/default.nix
+++ b/pkgs/development/tools/misc/creduce/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
   version = "2.7.0";
 
   src = fetchurl {
-    url = "http://embed.cs.utah.edu/creduce/${name}.tar.gz";
+    url = "https://embed.cs.utah.edu/creduce/${name}.tar.gz";
     sha256 = "0h8s4d54q6cl6i45x3143l2xmr29b2yhr3m0n5qqx63sr5csip1n";
   };
 
diff --git a/pkgs/development/tools/misc/csmith/default.nix b/pkgs/development/tools/misc/csmith/default.nix
index c4994ad24d79..a0040e4ed3e5 100644
--- a/pkgs/development/tools/misc/csmith/default.nix
+++ b/pkgs/development/tools/misc/csmith/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.3.0";
 
   src = fetchurl {
-    url = "http://embed.cs.utah.edu/csmith/${name}.tar.gz";
+    url = "https://embed.cs.utah.edu/csmith/${name}.tar.gz";
     sha256 = "1mb5zgixsyf86slggs756k8a5ddmj980md3ic9sa1y75xl5cqizj";
   };
 
diff --git a/pkgs/development/tools/misc/eggdbus/default.nix b/pkgs/development/tools/misc/eggdbus/default.nix
index 9f0ea147b585..3b1c70b4ac33 100644
--- a/pkgs/development/tools/misc/eggdbus/default.nix
+++ b/pkgs/development/tools/misc/eggdbus/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "eggdbus-0.6";
   
   src = fetchurl {
-    url = "http://hal.freedesktop.org/releases/${name}.tar.gz";
+    url = "https://hal.freedesktop.org/releases/${name}.tar.gz";
     sha256 = "118hj63ac65zlg71kydv4607qcg1qpdlql4kvhnwnnhar421jnq4";
   };
   
diff --git a/pkgs/development/tools/misc/intel-gpu-tools/default.nix b/pkgs/development/tools/misc/intel-gpu-tools/default.nix
index 5176be123018..08729f6b41b2 100644
--- a/pkgs/development/tools/misc/intel-gpu-tools/default.nix
+++ b/pkgs/development/tools/misc/intel-gpu-tools/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   name = "intel-gpu-tools-1.22";
 
   src = fetchurl {
-    url = "http://xorg.freedesktop.org/archive/individual/app/${name}.tar.xz";
+    url = "https://xorg.freedesktop.org/archive/individual/app/${name}.tar.xz";
     sha256 = "0p4swf9577p6hzglw1lh2sz63wjkk37b7691saj2qw8ha7fc2rix";
   };
 
diff --git a/pkgs/development/tools/misc/jscoverage/default.nix b/pkgs/development/tools/misc/jscoverage/default.nix
index cb7d9af86e7d..af660561ee17 100644
--- a/pkgs/development/tools/misc/jscoverage/default.nix
+++ b/pkgs/development/tools/misc/jscoverage/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "jscoverage-0.5.1";
 
   src = fetchurl {
-    url = "http://siliconforks.com/jscoverage/download/${name}.tar.bz2";
+    url = "https://siliconforks.com/jscoverage/download/${name}.tar.bz2";
     sha256 = "c45f051cec18c10352f15f9844f47e37e8d121d5fd16680e2dd0f3b4420eb7f4";
   };
 
diff --git a/pkgs/development/tools/misc/msitools/default.nix b/pkgs/development/tools/misc/msitools/default.nix
index ecee27c13858..ebba56d56d3b 100644
--- a/pkgs/development/tools/misc/msitools/default.nix
+++ b/pkgs/development/tools/misc/msitools/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "msitools-${version}";
 
   src = fetchurl {
-    url = "http://ftp.gnome.org/pub/GNOME/sources/msitools/0.97/${name}.tar.xz";
+    url = "https://ftp.gnome.org/pub/GNOME/sources/msitools/0.97/${name}.tar.xz";
     sha256 = "0pn6izlgwi4ngpk9jk2n38gcjjpk29nm15aad89bg9z3k9n2hnrs";
   };
 
diff --git a/pkgs/development/tools/misc/patchelf/default.nix b/pkgs/development/tools/misc/patchelf/default.nix
index 1982a25e3df0..39ec46ffbfdd 100644
--- a/pkgs/development/tools/misc/patchelf/default.nix
+++ b/pkgs/development/tools/misc/patchelf/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "patchelf-0.9";
 
   src = fetchurl {
-    url = "http://nixos.org/releases/patchelf/${name}/${name}.tar.bz2";
+    url = "https://nixos.org/releases/patchelf/${name}/${name}.tar.bz2";
     sha256 = "a0f65c1ba148890e9f2f7823f4bedf7ecad5417772f64f994004f59a39014f83";
   };
 
diff --git a/pkgs/development/tools/misc/prelink/default.nix b/pkgs/development/tools/misc/prelink/default.nix
index ccd0b15a46d2..89b1ed6ee40c 100644
--- a/pkgs/development/tools/misc/prelink/default.nix
+++ b/pkgs/development/tools/misc/prelink/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
   ];
 
   src = fetchurl {
-    url = "http://people.redhat.com/jakub/prelink/prelink-${version}.tar.bz2";
+    url = "https://people.redhat.com/jakub/prelink/prelink-${version}.tar.bz2";
     sha256 = "1w20f6ilqrz8ca51qhrn1n13h7q1r34k09g33d6l2vwvbrhcffb3";
   };
 
diff --git a/pkgs/development/tools/nwjs/default.nix b/pkgs/development/tools/nwjs/default.nix
index 90aec83be986..fc1513ecf34b 100644
--- a/pkgs/development/tools/nwjs/default.nix
+++ b/pkgs/development/tools/nwjs/default.nix
@@ -33,7 +33,7 @@ in stdenv.mkDerivation rec {
   version = "0.23.6";
 
   src = fetchurl {
-    url = "http://dl.nwjs.io/v${version}/nwjs-v${version}-linux-${bits}.tar.gz";
+    url = "https://dl.nwjs.io/v${version}/nwjs-v${version}-linux-${bits}.tar.gz";
     sha256 = if bits == "x64" then
       "0ppyjspdvacarhdn4xd5i1pqgmf4z1bxnh1cry780489h25rcjgj" else
       "0c0j73vnzhsry5rdx41d954a29jmjnvzli728cfbjybfr51zdybg";
diff --git a/pkgs/development/tools/parsing/antlr/2.7.7.nix b/pkgs/development/tools/parsing/antlr/2.7.7.nix
index 017ef20e81c6..cafb076aa811 100644
--- a/pkgs/development/tools/parsing/antlr/2.7.7.nix
+++ b/pkgs/development/tools/parsing/antlr/2.7.7.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "antlr-2.7.7";
   src = fetchurl {
-    url = "http://www.antlr2.org/download/antlr-2.7.7.tar.gz";
+    url = "https://www.antlr2.org/download/antlr-2.7.7.tar.gz";
     sha256 = "1ffvcwdw73id0dk6pj2mlxjvbg0662qacx4ylayqcxgg381fnfl5";
   };
   patches = [ ./2.7.7-fixes.patch ];
diff --git a/pkgs/development/tools/parsing/antlr/3.4.nix b/pkgs/development/tools/parsing/antlr/3.4.nix
index e6765806e4f7..c892b8fa8eab 100644
--- a/pkgs/development/tools/parsing/antlr/3.4.nix
+++ b/pkgs/development/tools/parsing/antlr/3.4.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "antlr-${version}";
   version = "3.4";
   src = fetchurl {
-    url ="http://www.antlr3.org/download/antlr-${version}-complete.jar";
+    url ="https://www.antlr3.org/download/antlr-${version}-complete.jar";
     sha256 = "1xqbam8vf04q5fasb0m2n1pn5dbp2yw763sj492ncq04c5mqcglx";
   };
 
diff --git a/pkgs/development/tools/parsing/antlr/3.5.nix b/pkgs/development/tools/parsing/antlr/3.5.nix
index 5e10003dd6f9..030a19e99405 100644
--- a/pkgs/development/tools/parsing/antlr/3.5.nix
+++ b/pkgs/development/tools/parsing/antlr/3.5.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "antlr-${version}";
   version = "3.5.2";
   src = fetchurl {
-    url ="http://www.antlr3.org/download/antlr-${version}-complete.jar";
+    url ="https://www.antlr3.org/download/antlr-${version}-complete.jar";
     sha256 = "0srjwxipwsfzmpi0v32d1l5lzk9gi5in8ayg33sq8wyp8ygnbji6";
   };
 
diff --git a/pkgs/development/tools/parsing/antlr/4.7.nix b/pkgs/development/tools/parsing/antlr/4.7.nix
index f58d0f9904aa..e097b5b3d5a5 100644
--- a/pkgs/development/tools/parsing/antlr/4.7.nix
+++ b/pkgs/development/tools/parsing/antlr/4.7.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "antlr-${version}";
   version = "4.7.1";
   src = fetchurl {
-    url ="http://www.antlr.org/download/antlr-${version}-complete.jar";
+    url ="https://www.antlr.org/download/antlr-${version}-complete.jar";
     sha256 = "1236gwnzchama92apb2swmklnypj01m7bdwwfvwvl8ym85scw7gl";
   };
 
diff --git a/pkgs/development/tools/parsing/ragel/default.nix b/pkgs/development/tools/parsing/ragel/default.nix
index cd1cb0efd123..f418229f893b 100644
--- a/pkgs/development/tools/parsing/ragel/default.nix
+++ b/pkgs/development/tools/parsing/ragel/default.nix
@@ -8,7 +8,7 @@ let
       name = "ragel-${version}";
 
       src = fetchurl {
-        url = "http://www.colm.net/files/ragel/${name}.tar.gz";
+        url = "https://www.colm.net/files/ragel/${name}.tar.gz";
         inherit sha256;
       };
 
diff --git a/pkgs/development/tools/profiling/EZTrace/default.nix b/pkgs/development/tools/profiling/EZTrace/default.nix
index 98b38697992d..2ff337ef2083 100644
--- a/pkgs/development/tools/profiling/EZTrace/default.nix
+++ b/pkgs/development/tools/profiling/EZTrace/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   name = "EZTrace-${version}";
 
   src = fetchurl {
-    url = "http://gforge.inria.fr/frs/download.php/file/34082/eztrace-${version}.tar.gz";
+    url = "https://gforge.inria.fr/frs/download.php/file/34082/eztrace-${version}.tar.gz";
     sha256 = "06q5y9qmdn1h0wjmy28z6gwswskmph49j7simfqcqwv05gvd9svr";
   };
 
diff --git a/pkgs/development/tools/selenium/chromedriver/default.nix b/pkgs/development/tools/selenium/chromedriver/default.nix
index 82724924a4a8..a2cd55f52b90 100644
--- a/pkgs/development/tools/selenium/chromedriver/default.nix
+++ b/pkgs/development/tools/selenium/chromedriver/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   version = "2.40";
 
   src = fetchurl {
-    url = "http://chromedriver.storage.googleapis.com/${version}/chromedriver_${spec.system}.zip";
+    url = "https://chromedriver.storage.googleapis.com/${version}/chromedriver_${spec.system}.zip";
     sha256 = spec.sha256;
   };
 
diff --git a/pkgs/development/tools/tradcpp/default.nix b/pkgs/development/tools/tradcpp/default.nix
index 3891617e1c79..8cde662b14c3 100644
--- a/pkgs/development/tools/tradcpp/default.nix
+++ b/pkgs/development/tools/tradcpp/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "tradcpp-0.5.2";
 
   src = fetchurl {
-    url = http://ftp.netbsd.org/pub/NetBSD/misc/dholland/tradcpp-0.5.2.tar.gz;
+    url = https://ftp.netbsd.org/pub/NetBSD/misc/dholland/tradcpp-0.5.2.tar.gz;
     sha256 = "1h2bwxwc13rz3g2236l89hm47f72hn3m4h7wjir3j532kq0m68bc";
   };
 
diff --git a/pkgs/development/web/csslint/default.nix b/pkgs/development/web/csslint/default.nix
index 4e8cb2b8829c..4159e3690490 100644
--- a/pkgs/development/web/csslint/default.nix
+++ b/pkgs/development/web/csslint/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   name = "csslint-${version}";
 
   src = fetchurl {
-    url = "http://registry.npmjs.org/csslint/-/${name}.tgz";
+    url = "https://registry.npmjs.org/csslint/-/${name}.tgz";
     sha256 = "1gq2x0pf2p4jhccvn3y3kjhm1lmb4jsfdbzjdh924w8m3sr9jdid";
   };