diff --git a/pkgs/development/libraries/haskell/attoparsec-conduit/default.nix b/pkgs/development/libraries/haskell/attoparsec-conduit/default.nix
index 48f9ce492c2f..0ce16db4466a 100644
--- a/pkgs/development/libraries/haskell/attoparsec-conduit/default.nix
+++ b/pkgs/development/libraries/haskell/attoparsec-conduit/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "attoparsec-conduit";
-  version = "0.0.0.1";
-  sha256 = "1z6v2j08j3fl329npiz9klbz5gbcl0q8vgz3drmrmyhn31a6cvsf";
+  version = "0.0.1";
+  sha256 = "04r3ywzjm39rmd0pka8537c8n6d4l6scgzkqzplmi6nb0kikgb6i";
   buildDepends = [ attoparsec conduit text transformers ];
   meta = {
     homepage = "http://github.com/snoyberg/conduit";