diff --git a/happstack-clientsession.cabal b/happstack-clientsession.cabal
--- a/happstack-clientsession.cabal
+++ b/happstack-clientsession.cabal
@@ -1,5 +1,5 @@
 Name          : happstack-clientsession
-Version       : 7.2.5
+Version       : 7.2.6
 License       : BSD3
 License-file  : COPYING
 Synopsis      : client-side session data
@@ -24,7 +24,7 @@
   Build-Depends   :
     base              == 4.*,
     bytestring        >= 0.9 && < 0.11,
-    cereal            == 0.3.*,
+    cereal            >= 0.3 && < 0.5,
     clientsession     >= 0.8 && < 0.10,
     happstack-server  >= 7.0 && < 7.4,
     monad-control     == 0.3.*,