2 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/development/tools/misc/callgrind/default.nix b/pkgs/development/tools/misc/callgrind/default.nix
index f9410b1c998d..d5efe3ddae35 100644
--- a/pkgs/development/tools/misc/callgrind/default.nix
+++ b/pkgs/development/tools/misc/callgrind/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   builder = ./builder.sh;
 
   src = fetchurl {
-    url = http://kcachegrind.sourceforge.net/callgrind-0.10.1.tar.bz2;
+    url = http://nix.cs.uu.nl/dist/tarballs/callgrind-0.10.1.tar.bz2;
     md5 = "6d8acca6b58b0b72804339d04426d550";
   };
 
diff --git a/pkgs/development/tools/misc/valgrind/default.nix b/pkgs/development/tools/misc/valgrind/default.nix
index 03a249c338e9..c10695f425a0 100644
--- a/pkgs/development/tools/misc/valgrind/default.nix
+++ b/pkgs/development/tools/misc/valgrind/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "valgrind-3.1.0";
   src = fetchurl {
-    url = http://valgrind.org/downloads/valgrind-3.1.0.tar.bz2;
+    url = http://nix.cs.uu.nl/dist/tarballs/valgrind-3.1.0.tar.bz2;
     md5 = "d92156e9172dc6097e56c69ea9c88013";
   };
 }