diff --git a/pkgs/development/libraries/haskell/conduit/default.nix b/pkgs/development/libraries/haskell/conduit/default.nix
index 5b82a2f26a0..f58293ec5e6 100644
--- a/pkgs/development/libraries/haskell/conduit/default.nix
+++ b/pkgs/development/libraries/haskell/conduit/default.nix
@@ -6,8 +6,8 @@
 
 cabal.mkDerivation (self: {
   pname = "conduit";
-  version = "1.2.0.2";
-  sha256 = "0gr4vqyvy3jdc1l7sinwr5dgmwzv7dq2z1npwvmbxz85bq89rmd9";
+  version = "1.2.1";
+  sha256 = "0pcnaqvavy289cmsp6mfapc350p9sq2fq8aq9lv5a256nxq2qffa";
   buildDepends = [
     exceptions liftedBase mmorph monadControl mtl resourcet
     transformers transformersBase void