diff --git a/Happstack/Foundation.hs b/Happstack/Foundation.hs
--- a/Happstack/Foundation.hs
+++ b/Happstack/Foundation.hs
@@ -171,15 +171,20 @@
 whereami = here <$> get
 
 -- | get the 'requestState' value
-getRequestState :: (Functor m, Monad m) => FoundationT url acidState requestState m requestState
+getRequestState :: (Functor m, MonadState (AppState url acidState requestState) m) => m requestState
 getRequestState = reqSt <$> get
 
 -- | set the 'requestState' value
-setRequestState :: (Functor m, Monad m) => requestState -> FoundationT url acidState requestState m ()
+setRequestState :: (Functor m, MonadState (AppState url acidState requestState) m) =>
+                   requestState
+                -> m ()
 setRequestState st = modify $ \appState -> appState { reqSt = st }
 
 -- | set the 'requestState' value
-modifyRequestState :: (Functor m, Monad m) => (requestState -> requestState) -> FoundationT url acidState requestState m ()
+modifyRequestState :: MonadState (AppState url acidState requestState) m =>
+                      (requestState -> requestState)
+                   -> m ()
+
 modifyRequestState f = modify $ \appState -> appState { reqSt = f (reqSt appState) }
 
 instance (Functor m, Monad m) => HasAcidState (FoundationT url acidState requestState m) acidState where
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:             0.2.1
+Version:             0.2.2
 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:
@@ -32,7 +32,7 @@
                      hsp                   == 0.7.*,
                      lifted-base           == 0.1.*,
                      monad-control         == 0.3.*,
-                     mtl                   == 2.1.*,
+                     mtl                   >= 2.0 && < 2.2,
                      reform                == 0.1.*,
                      reform-happstack      == 0.1.*,
                      reform-hsp            == 0.1.*,