diff --git a/Control/Monad/Trans/Unlift.hs b/Control/Monad/Trans/Unlift.hs
--- a/Control/Monad/Trans/Unlift.hs
+++ b/Control/Monad/Trans/Unlift.hs
@@ -1,13 +1,17 @@
-{-# LANGUAGE ConstraintKinds        #-}
-{-# LANGUAGE FlexibleContexts       #-}
-{-# LANGUAGE FlexibleInstances      #-}
-{-# LANGUAGE FunctionalDependencies #-}
-{-# LANGUAGE MultiParamTypeClasses  #-}
-{-# LANGUAGE RankNTypes             #-}
-{-# LANGUAGE ScopedTypeVariables    #-}
-{-# LANGUAGE TypeFamilies           #-}
-{-# LANGUAGE TypeOperators          #-}
-{-# LANGUAGE UndecidableInstances   #-}
+{-# LANGUAGE ConstraintKinds         #-}
+{-# LANGUAGE CPP                     #-}
+{-# LANGUAGE FlexibleContexts        #-}
+{-# LANGUAGE FlexibleInstances       #-}
+{-# LANGUAGE FunctionalDependencies  #-}
+{-# LANGUAGE MultiParamTypeClasses   #-}
+{-# LANGUAGE RankNTypes              #-}
+{-# LANGUAGE ScopedTypeVariables     #-}
+{-# LANGUAGE TypeFamilies            #-}
+{-# LANGUAGE TypeOperators           #-}
+{-# LANGUAGE UndecidableInstances    #-}
+#if __GLASGOW_HASKELL__ >= 800
+{-# LANGUAGE UndecidableSuperClasses #-}
+#endif
 -- | See overview in the README.md
 module Control.Monad.Trans.Unlift
     ( -- * Trans
diff --git a/monad-unlift.cabal b/monad-unlift.cabal
--- a/monad-unlift.cabal
+++ b/monad-unlift.cabal
@@ -1,5 +1,5 @@
 name:                monad-unlift
-version:             0.1.1.0
+version:             0.1.2.0
 synopsis:            Typeclasses for representing monad transformer unlifting
 description:         See README.md
 homepage:            https://github.com/fpco/monad-unlift