diff --git a/pkgs/development/libraries/haskell/data-accessor/data-accessor.nix b/pkgs/development/libraries/haskell/data-accessor/data-accessor.nix
index f6b48befd5d..76bee6c05a8 100644
--- a/pkgs/development/libraries/haskell/data-accessor/data-accessor.nix
+++ b/pkgs/development/libraries/haskell/data-accessor/data-accessor.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "data-accessor";
-  version = "0.2.2";
-  sha256 = "1jqd0qlv1yab83d5pdbzjw6q4a2kvbsar6kgczq0f0xn9gxm0qci";
+  version = "0.2.2.1";
+  sha256 = "1zb7z9fnlnxxlvjd655vadfscanzq9msvjv21cjmdric0ja24hxb";
   buildDepends = [ transformers ];
   meta = {
     homepage = "http://www.haskell.org/haskellwiki/Record_access";