diff --git a/pkgs/development/libraries/haskell/yesod-json/default.nix b/pkgs/development/libraries/haskell/yesod-json/default.nix
index cf65dc8993e..379d7319b12 100644
--- a/pkgs/development/libraries/haskell/yesod-json/default.nix
+++ b/pkgs/development/libraries/haskell/yesod-json/default.nix
@@ -1,14 +1,14 @@
-{ cabal, aeson, blazeBuilder, shakespeareJs, text
-, unorderedContainers, vector, yesodCore
+{ cabal, aeson, attoparsecEnumerator, blazeBuilder, shakespeareJs
+, text, transformers, unorderedContainers, vector, yesodCore
 }:
 
 cabal.mkDerivation (self: {
   pname = "yesod-json";
-  version = "0.2.2.2";
-  sha256 = "0mhajy0hal9icwys63vcmlipl3gwm8bvv7xywwjydd86drqhz9ni";
+  version = "0.2.3";
+  sha256 = "0bd75zzxqrarqk8b2v515jv0zbi5x27fmb9cbj3g57l9ig57lqy5";
   buildDepends = [
-    aeson blazeBuilder shakespeareJs text unorderedContainers vector
-    yesodCore
+    aeson attoparsecEnumerator blazeBuilder shakespeareJs text
+    transformers unorderedContainers vector yesodCore
   ];
   meta = {
     homepage = "http://www.yesodweb.com/";