diff --git a/pkgs/development/interpreters/spidermonkey/31.nix b/pkgs/development/interpreters/spidermonkey/31.nix
index ae3e742e2ef4..e64ab1b39a7c 100644
--- a/pkgs/development/interpreters/spidermonkey/31.nix
+++ b/pkgs/development/interpreters/spidermonkey/31.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   # probably it would be more ideal to pull a particular tag/revision
   # from the mercurial repo
   src = fetchurl {
-    url = "https://people.mozilla.org/~sstangl/mozjs-31.5.0.tar.bz2";
+    url = "https://people.freebsd.org/~sunpoet/sunpoet/mozjs-31.5.0.tar.bz2";
     sha256 = "1q8icql5hh1g3gzg5fp4rl9rfagyhm9gilfn3dgi7qn4i1mrfqsd";
   };
 
diff --git a/pkgs/development/interpreters/spidermonkey/38.nix b/pkgs/development/interpreters/spidermonkey/38.nix
index b4823817d4b7..f8fefd204e56 100644
--- a/pkgs/development/interpreters/spidermonkey/38.nix
+++ b/pkgs/development/interpreters/spidermonkey/38.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   # probably it would be more ideal to pull a particular tag/revision
   # from the mercurial repo
   src = fetchurl {
-    url = "https://people.mozilla.org/~sstangl/mozjs-${version}.tar.bz2";
+    url = "https://people.freebsd.org/~sunpoet/sunpoet/mozjs-${version}.tar.bz2";
     sha256 = "0p4bmbpgkfsj54xschcny0a118jdrdgg0q29rwxigg3lh5slr681";
   };