diff --git a/base64-string.cabal b/base64-string.cabal
--- a/base64-string.cabal
+++ b/base64-string.cabal
@@ -1,5 +1,5 @@
 Name:               base64-string
-Version:            0.1
+Version:            0.2
 License:            OtherLicense
 License-File:       COPYING
 Copyright:          Ian Lynagh, 2005, 2007
@@ -16,10 +16,11 @@
     to signal the number of characters mod 3.
     It is compliant with both PEM (RFC 989 / RFC 1421) and MIME (RFC 2045).
 Category:           Codec
+Build-Type:         Simple
 Tested-With:        GHC==6.6
-Build-Depends:      base
+Build-Depends:      base >= 3 && < 5
 Extra-source-files: "BSD3", "GPL-2", "Test.hs"
 Exposed-modules:
     Codec.Binary.Base64.String
-GHC-Options: -O -Wall -Werror
+GHC-Options: -Wall