diff --git a/HDBC.cabal b/HDBC.cabal
--- a/HDBC.cabal
+++ b/HDBC.cabal
@@ -1,5 +1,5 @@
 Name: HDBC
-Version: 2.0.0
+Version: 2.0.1
 License: LGPL
 Maintainer: John Goerzen <jgoerzen@complete.org>
 Author: John Goerzen
@@ -30,6 +30,11 @@
   else
     Build-Depends: base<3
   Build-Depends: mtl, convertible >= 1.0.1, utf8-string
+
+  -- Hack for cabal-install weirdness.  cabal-install forces base 3,
+  -- though it works fine for Setup.lhs manually.  Fix.
+  if impl(ghc >= 6.9)
+     build-depends: base >= 4
 
   GHC-Options: -O2 -Wall -fno-warn-orphans