diff --git a/conduit.cabal b/conduit.cabal
--- a/conduit.cabal
+++ b/conduit.cabal
@@ -1,5 +1,5 @@
 Name:                conduit
-Version:             1.1.2
+Version:             1.1.2.1
 Synopsis:            Streaming data processing library.
 Description:
     @conduit@ is a solution to the streaming data problem, allowing for production, transformation, and consumption of streams of data in constant memory. It is an alternative to lazy I\/O which guarantees deterministic resource handling, and fits in the same general solution space as @enumerator@\/@iteratee@ and @pipes@. For a tutorial, please visit <https://haskell.fpcomplete.com/user/snoyberg/library-documentation/conduit-overview>.
@@ -26,7 +26,7 @@
                      , transformers-base        >= 0.4.1        && < 0.5
                      , monad-control            >= 0.3.1        && < 0.4
                      , containers
-                     , transformers             >= 0.2.2        && < 0.4
+                     , transformers             >= 0.2.2        && < 0.5
                      , mtl
                      , void                     >= 0.5.5
                      , mmorph