diff --git a/quickcheck-property-monad.cabal b/quickcheck-property-monad.cabal
--- a/quickcheck-property-monad.cabal
+++ b/quickcheck-property-monad.cabal
@@ -1,5 +1,5 @@
 name: quickcheck-property-monad
-version: 0.2.2
+version: 0.2.3
 cabal-version: >=1.10
 build-type: Custom
 license: BSD3
@@ -32,7 +32,7 @@
     build-depends:
         base >=4.5 && <4.8,
         either >=4.1.1 && <4.4,
-        transformers >=0.3.0.0 && <0.4,
+        transformers >=0.3.0.0 && <0.5,
         QuickCheck >=2.5.1.1 && <2.8
     exposed-modules:
         Test.QuickCheck.Property.Monad