diff --git a/pkgs/development/libraries/haskell/conduit/default.nix b/pkgs/development/libraries/haskell/conduit/default.nix
index 81ca10bdb38..d0683175482 100644
--- a/pkgs/development/libraries/haskell/conduit/default.nix
+++ b/pkgs/development/libraries/haskell/conduit/default.nix
@@ -1,21 +1,20 @@
 # This file was auto-generated by cabal2nix. Please do NOT edit manually!
 
-{ cabal, exceptions, hspec, liftedBase, mmorph, monadControl, mtl
-, QuickCheck, resourcet, safe, transformers, transformersBase, void
+{ cabal, exceptions, hspec, liftedBase, mmorph, mtl, QuickCheck
+, resourcet, safe, transformers, transformersBase, void
 }:
 
 cabal.mkDerivation (self: {
   pname = "conduit";
-  version = "1.2.3";
-  sha256 = "1n4cc5mij9q5wrnm394a2dka7vbnnr9c2kg5d3f4sl1fh156lf6n";
+  version = "1.2.3.1";
+  sha256 = "04n330f9iad6asmry81aqvb7wyh7b962d6pvcfnpm327z4llnvbq";
   buildDepends = [
-    exceptions liftedBase mmorph monadControl mtl resourcet
-    transformers transformersBase void
+    exceptions liftedBase mmorph mtl resourcet transformers
+    transformersBase void
   ];
   testDepends = [
     exceptions hspec mtl QuickCheck resourcet safe transformers void
   ];
-  doCheck = false;
   meta = {
     homepage = "http://github.com/snoyberg/conduit";
     description = "Streaming data processing library";