diff --git a/checkers.cabal b/checkers.cabal
--- a/checkers.cabal
+++ b/checkers.cabal
@@ -1,6 +1,6 @@
 Name:                checkers
-Version:             0.3.0
-Cabal-Version:       >= 1.2
+Version:             0.3.1
+Cabal-Version:       >= 1.6
 Synopsis:            Check properties on standard classes and data structures.
 Category:            Testing
 Description:
@@ -9,21 +9,21 @@
   properties.  It also provides arbitrary instances and generator combinators
   for common data types.
   .
-  Project wiki page: <http://haskell.org/haskellwiki/checkers>
-  .
   &#169; 2008-2013 by Conal Elliott; BSD3 license.
   .
   Contributions from: Thomas Davie.
 Author:              Conal Elliott 
 Maintainer:          conal@conal.net
-Homepage:            http://haskell.org/haskellwiki/checkers
-Package-Url:         http://code.haskell.org/checkers
-Copyright:           (c) 2008 by Conal Elliott
+Copyright:           (c) 2008-2013 by Conal Elliott
 License:             BSD3
 License-File:        COPYING
 Stability:           experimental
 build-type:          Simple
 
+source-repository head
+  type:     git
+  location: git://github.com/conal/checkers.git
+
 Library
   hs-Source-Dirs:      src
   Extensions:
@@ -45,6 +45,4 @@
                        Test.QuickCheck.Later
   Other-modules:
                        Control.Monad.Extensions
-  ghc-options:         -Wall -fno-warn-orphans
-
---  ghc-prof-options:    -prof -auto-all 
+  ghc-options:         -Wall
diff --git a/src/Test/QuickCheck/Instances/Array.hs b/src/Test/QuickCheck/Instances/Array.hs
--- a/src/Test/QuickCheck/Instances/Array.hs
+++ b/src/Test/QuickCheck/Instances/Array.hs
@@ -1,3 +1,4 @@
+{-# OPTIONS_GHC -Wall -fno-warn-orphans #-}
 module Test.QuickCheck.Instances.Array where
 
 import Test.QuickCheck