diff --git a/Data/Array/Diff.hs b/Data/Array/Diff.hs
--- a/Data/Array/Diff.hs
+++ b/Data/Array/Diff.hs
@@ -3,7 +3,7 @@
 -- Module      :  Data.Array.Diff
 -- Copyright   :  (c) The University of Glasgow 2001
 -- License     :  BSD-style (see the file libraries/base/LICENSE)
--- 
+--
 -- Maintainer  :  libraries@haskell.org
 -- Stability   :  experimental
 -- Portability :  non-portable (uses Data.Array.IArray)
@@ -56,7 +56,7 @@
     DiffUArray,    -- = IOToDiffArray IOUArray
 
     -- * Overloaded immutable array interface
-    
+
     -- | Module "Data.Array.IArray" provides the interface of diff arrays.
     -- They are instances of class 'IArray'.
     module Data.Array.IArray,
@@ -75,7 +75,7 @@
 
 import Data.Array.Base
 import Data.Array.IArray
-import Data.Array.IO
+import Data.Array.IO      ( IOArray, IOUArray )
 
 import Foreign.Ptr        ( Ptr, FunPtr )
 import Foreign.StablePtr  ( StablePtr )
diff --git a/diffarray.cabal b/diffarray.cabal
--- a/diffarray.cabal
+++ b/diffarray.cabal
@@ -1,5 +1,5 @@
 name:       diffarray
-version:    0.1
+version:    0.1.1
 license:    BSD3
 license-file:    LICENSE
 maintainer:    libraries@haskell.org