5 files changed, 6 insertions, 6 deletions
diff --git a/pkgs/tools/networking/cutter/default.nix b/pkgs/tools/networking/cutter/default.nix
index 5d383f072102..ad7d25404069 100644
--- a/pkgs/tools/networking/cutter/default.nix
+++ b/pkgs/tools/networking/cutter/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "http://www.digitage.co.uk/digitage/files/cutter/${name}.tgz";
-    md5 = "50093db9b64277643969ee75b83ebbd1";
+    sha256 = "05cn22wi70l9ybhmzw0sy3fd6xxz0lq49fws4zxzm2i0qb3zmx2d";
   };
 
   installPhase = ''
diff --git a/pkgs/tools/networking/netcat-openbsd/default.nix b/pkgs/tools/networking/netcat-openbsd/default.nix
index c7bbf3892d29..8619eb798479 100644
--- a/pkgs/tools/networking/netcat-openbsd/default.nix
+++ b/pkgs/tools/networking/netcat-openbsd/default.nix
@@ -7,11 +7,11 @@ stdenv.mkDerivation rec {
   srcs = [
     (fetchurl {
       url = "mirror://debian/pool/main/n/netcat-openbsd/netcat-openbsd_1.105.orig.tar.gz";
-      md5 = "7e67b22f1ad41a1b7effbb59ff28fca1";
+      sha256 = "07i1vcz8ycnfwsvz356rqmim8akfh8yhjzmhc5mqf5hmdkk3yra0";
     })
     (fetchurl {
       url = "mirror://debian/pool/main/n/netcat-openbsd/netcat-openbsd_1.105-7.debian.tar.gz";
-      md5 = "e914f8eb7eda5c75c679dd77787ac76b";
+      sha256 = "0qxkhbwcifrps34s5mzzg79cmkvz3f96gphd3pl978pygwr5krzf";
     })
   ];
 
diff --git a/pkgs/tools/networking/netcat/default.nix b/pkgs/tools/networking/netcat/default.nix
index 94ae6ea0630c..5ad5540438c7 100644
--- a/pkgs/tools/networking/netcat/default.nix
+++ b/pkgs/tools/networking/netcat/default.nix
@@ -4,6 +4,6 @@ stdenv.mkDerivation {
   name = "netcat-gnu-0.7.1";
   src = fetchurl {
     url = mirror://sourceforge/netcat/netcat-0.7.1.tar.bz2;
-    md5 = "0a29eff1736ddb5effd0b1ec1f6fe0ef";
+    sha256 = "1frjcdkhkpzk0f84hx6hmw5l0ynpmji8vcbaxg8h5k2svyxz0nmm";
   };
 }
diff --git a/pkgs/tools/networking/p2p/azureus/default.nix b/pkgs/tools/networking/p2p/azureus/default.nix
index ffa360f3de4b..246a32f134c2 100644
--- a/pkgs/tools/networking/p2p/azureus/default.nix
+++ b/pkgs/tools/networking/p2p/azureus/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   builder = ./builder.sh;
   src = fetchurl {
     url = http://tarballs.nixos.org/Azureus2.3.0.6.jar;
-    md5 = "84f85b144cdc574338c2c84d659ca620";
+    sha256 = "1hwrh3n0b0jbpsdk15zrs7pw175418phhmg6pn4xi1bvilxq1wrd";
   };
 #  buildInputs = [unzip];
   inherit jdk swt;
diff --git a/pkgs/tools/networking/par2cmdline/default.nix b/pkgs/tools/networking/par2cmdline/default.nix
index c94ab37f1ea9..bb5bee8868f9 100644
--- a/pkgs/tools/networking/par2cmdline/default.nix
+++ b/pkgs/tools/networking/par2cmdline/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   
   src = fetchurl {
     url = mirror://sourceforge/parchive/par2cmdline-0.4.tar.gz;
-    md5 = "1551b63e57e3c232254dc62073b723a9";
+    sha256 = "0xznx4vgf9nd0ijm2xi2zrb42wb891ypa948z54q5jkvrzdvfcly";
   };
 
   patches = [