diff --git a/happstack-foundation.cabal b/happstack-foundation.cabal
--- a/happstack-foundation.cabal
+++ b/happstack-foundation.cabal
@@ -1,5 +1,5 @@
 Name:                happstack-foundation
-Version:             0.5.1
+Version:             0.5.2
 Synopsis:            Glue code for using Happstack with acid-state, web-routes, reform, and HSP
 Description:         happstack-foundation is a library which builds on top of existing components
                      to provide a powerful and type-safe environment for web development. It uses:
@@ -29,7 +29,7 @@
                      acid-state            >= 0.7 && < 0.13,
                      happstack-hsp         == 7.2.*,
                      happstack-server      >= 7.0 && < 7.4,
-                     hsp                   == 0.9.*,
+                     hsp                   >= 0.9 && < 0.11,
                      lifted-base           >= 0.1 && < 0.3,
                      monad-control         == 0.3.*,
                      mtl                   >= 2.0 && < 2.2,