diff --git a/pkgs/applications/version-management/git-and-tools/git-annex/default.nix b/pkgs/applications/version-management/git-and-tools/git-annex/default.nix
index b3a9f02ed9e9..1a2e637bff06 100644
--- a/pkgs/applications/version-management/git-and-tools/git-annex/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-annex/default.nix
@@ -10,14 +10,14 @@
 }:
 
 let
-  version = "4.20130405";
+  version = "4.20130501";
 in
 stdenv.mkDerivation {
   name = "git-annex-${version}";
 
   src = fetchurl {
     url = "http://git.kitenet.net/?p=git-annex.git;a=snapshot;sf=tgz;h=${version}";
-    sha256 = "13lzkvk5095qj8026lc1p56w0q1c95v7nx8g9p9zrf8mhx6yxb9n";
+    sha256 = "0g89lmkrs02qdb1k1bfq9gz3j4yv35320vb8ddmj99f4nnhqc6vv";
     name = "git-annex-${version}.tar.gz";
   };