diff --git a/pkgs/development/libraries/libtheora/default.nix b/pkgs/development/libraries/libtheora/default.nix
index 278eea690946..f0c637d0f239 100644
--- a/pkgs/development/libraries/libtheora/default.nix
+++ b/pkgs/development/libraries/libtheora/default.nix
@@ -1,10 +1,10 @@
 {stdenv, fetchurl, libogg, libvorbis}:
 
 stdenv.mkDerivation {
-  name = "libtheora-1.0alpha4";
+  name = "libtheora-1.0alpha7";
   src = fetchurl {
-    url = http://nix.cs.uu.nl/dist/tarballs/libtheora-1.0alpha4.tar.bz2;
-    md5 = "a71ac42ec0f848da327930841a80ff2b";
+    url = http://downloads.xiph.org/releases/theora/libtheora-1.0alpha7.tar.bz2;
+    md5 = "1bc851e39e4b16977131d5e5f769f48b";
   };
   propagatedBuildInputs = [libogg libvorbis];
 }