diff --git a/pkgs/development/python-modules/pycrypto/default.nix b/pkgs/development/python-modules/pycrypto/default.nix
index bfb8483042d..7d7f1adf03b 100644
--- a/pkgs/development/python-modules/pycrypto/default.nix
+++ b/pkgs/development/python-modules/pycrypto/default.nix
@@ -1,11 +1,14 @@
 { stdenv, fetchurl, python, gmp }:
 
+# TODO: Update to version 2.1.0 ASAP. The update works, but as of 2010-07-28
+#       the download site appears to be down.
+
 stdenv.mkDerivation rec {
-  name = "pycrypto-2.1.0";
+  name = "pycrypto-2.0.1";
 
   src = fetchurl {
-    url = "http://www.pycrypto.org/files/${name}.tar.gz";
-    sha256 = "18nq49l8wplg54hz9h26n61rq49vjzmy5xzlkm1g0j82x8i1qgi5";
+    url = "http://pypi.python.org/packages/source/p/pycrypto/${name}.tar.gz";
+    sha256 = "2dff97ae70b6811157b516bf633405d09147ee1e2bfa06b0c657ad2c22de5800";
   };
 
   buildInputs = [ python gmp ];