1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/libraries/science/math/rubiks/default.nix b/pkgs/development/libraries/science/math/rubiks/default.nix
index fe448106b15d..624885c501aa 100644
--- a/pkgs/development/libraries/science/math/rubiks/default.nix
+++ b/pkgs/development/libraries/science/math/rubiks/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
   name = "${pname}-${version}";
 
   src = fetchurl {
-    url = "http://mirrors.mit.edu/sage/spkg/upstream/rubiks/rubiks-${version}.tar.bz2";
+    url = "mirror://sageupstream/rubiks/rubiks-${version}.tar.bz2";
     sha256 = "0zdmkb0j1kyspdpsszzb2k3279xij79jkx0dxd9f3ix1yyyg3yfq";
   };