diff --git a/pkgs/development/libraries/haskell/yesod-persistent/default.nix b/pkgs/development/libraries/haskell/yesod-persistent/default.nix
index 2c6b6f96fbc..a3740629150 100644
--- a/pkgs/development/libraries/haskell/yesod-persistent/default.nix
+++ b/pkgs/development/libraries/haskell/yesod-persistent/default.nix
@@ -5,8 +5,8 @@
 
 cabal.mkDerivation (self: {
   pname = "yesod-persistent";
-  version = "1.2.1";
-  sha256 = "06kzxdbg3xw128zlacsf51qi7qnccw0gjnwscxshljgipiicfhfc";
+  version = "1.2.2";
+  sha256 = "0pi7r6mf8ikd76cwdpjzb1lf73jc3f0ji3xximmg25q8lwcjygq5";
   buildDepends = [
     blazeBuilder conduit liftedBase persistent persistentTemplate
     poolConduit resourcet transformers yesodCore