diff --git a/pkgs/development/libraries/haskell/yesod/default.nix b/pkgs/development/libraries/haskell/yesod/default.nix
index 5f4a04e66a5..d43100901cc 100644
--- a/pkgs/development/libraries/haskell/yesod/default.nix
+++ b/pkgs/development/libraries/haskell/yesod/default.nix
@@ -2,21 +2,22 @@
 
 { cabal, aeson, blazeHtml, blazeMarkup, conduitExtra, dataDefault
 , fastLogger, hamlet, monadControl, monadLogger, networkConduit
-, safe, shakespeare, shakespeareCss, shakespeareJs, text
-, transformers, unorderedContainers, wai, waiExtra, warp, yaml
-, yesodAuth, yesodCore, yesodForm, yesodPersistent
+, safe, shakespeare, shakespeareCss, shakespeareJs
+, streamingCommons, text, transformers, unorderedContainers, wai
+, waiExtra, warp, yaml, yesodAuth, yesodCore, yesodForm
+, yesodPersistent
 }:
 
 cabal.mkDerivation (self: {
   pname = "yesod";
-  version = "1.2.6";
-  sha256 = "0rw46zznczdzg2wvbgp5kpq3yrl6w40vbbs7zyvqpcf6m82jsfz0";
+  version = "1.2.6.1";
+  sha256 = "1xiqpbcjxisc4lic7ls03rz184d95vkh4kb3ampwbx463qbj9im2";
   buildDepends = [
     aeson blazeHtml blazeMarkup conduitExtra dataDefault fastLogger
     hamlet monadControl monadLogger networkConduit safe shakespeare
-    shakespeareCss shakespeareJs text transformers unorderedContainers
-    wai waiExtra warp yaml yesodAuth yesodCore yesodForm
-    yesodPersistent
+    shakespeareCss shakespeareJs streamingCommons text transformers
+    unorderedContainers wai waiExtra warp yaml yesodAuth yesodCore
+    yesodForm yesodPersistent
   ];
   meta = {
     homepage = "http://www.yesodweb.com/";