diff --git a/happstack-util.cabal b/happstack-util.cabal
--- a/happstack-util.cabal
+++ b/happstack-util.cabal
@@ -1,5 +1,5 @@
 Name:                happstack-util
-Version:             0.5.0
+Version:             0.5.0.1
 Synopsis:            Web framework
 License:             BSD3
 License-file:        COPYING
@@ -32,7 +32,7 @@
                        mtl,
                        old-locale,
                        old-time,
-                       parsec < 3,
+                       parsec < 4,
                        process,
                        time,
                        random,