diff --git a/disposable.cabal b/disposable.cabal
--- a/disposable.cabal
+++ b/disposable.cabal
@@ -1,5 +1,5 @@
 name:                disposable
-version:             0.2.0.2
+version:             0.2.0.3
 synopsis:            Allows storing different resource-releasing actions together.
 description:         SomeDisposable aloows storing different resource releasing actions togther in a container.
                      This library is useful for queueing up GHCJS.Foreign.Callback together to be released
diff --git a/src/Control/Disposable.hs b/src/Control/Disposable.hs
--- a/src/Control/Disposable.hs
+++ b/src/Control/Disposable.hs
@@ -5,7 +5,6 @@
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE TypeOperators #-}
-{-# LANGUAGE UndecidableInstances #-}
 
 module Control.Disposable where