diff --git a/pkgs/development/libraries/haskell/twitter-types/default.nix b/pkgs/development/libraries/haskell/twitter-types/default.nix
index 4b73fc5cf5a..6783993f718 100644
--- a/pkgs/development/libraries/haskell/twitter-types/default.nix
+++ b/pkgs/development/libraries/haskell/twitter-types/default.nix
@@ -5,8 +5,8 @@
 
 cabal.mkDerivation (self: {
   pname = "twitter-types";
-  version = "0.3.20140601";
-  sha256 = "1z8vdhyklgb4s3jxkavb8n62h9cn3y80qqzab3hswfv5xwri20ni";
+  version = "0.3.20140620";
+  sha256 = "02mwdgz1l1z5k5k78bjnnbabcr27xixli1gqk6rmqrarcylybvll";
   buildDepends = [ aeson httpTypes text unorderedContainers ];
   testDepends = [
     aeson attoparsec httpTypes HUnit shakespeare testFramework