diff --git a/repa-algorithms.cabal b/repa-algorithms.cabal
--- a/repa-algorithms.cabal
+++ b/repa-algorithms.cabal
@@ -1,5 +1,5 @@
 Name:                repa-algorithms
-Version:             3.2.2.3
+Version:             3.2.2.201204.1
 License:             BSD3
 License-file:        LICENSE
 Author:              The DPH Team
@@ -11,6 +11,9 @@
 Homepage:            http://repa.ouroborus.net
 Bug-reports:         repa@ouroborus.net
 Description:
+        Legacy version for Haskell Platform 2012.04. You will get better
+        performance if you upgrade to the most recent version of GHC.
+
         Reusable algorithms using the Repa array library.
 
 Synopsis:
@@ -18,9 +21,9 @@
 
 Library
   Build-Depends: 
-        base                 == 4.6.*,
+        base                 == 4.5.*,
         vector               == 0.10.*,
-        repa                 == 3.2.*
+        repa                 == 3.2.2.201204.*
 
   ghc-options:
         -Wall -fno-warn-missing-signatures