diff --git a/Web/Scotty/Session.hs b/Web/Scotty/Session.hs
--- a/Web/Scotty/Session.hs
+++ b/Web/Scotty/Session.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE OverloadedStrings #-}
+
 module Web.Scotty.Session
     ( createSessionManager
     , modifySession
@@ -9,7 +10,7 @@
 
 import Control.Concurrent
 import Control.Concurrent.STM
-import Control.Monad.IO.Class (liftIO)
+import Control.Monad.IO.Class (MonadIO, liftIO)
 import Data.Monoid
 import Control.Arrow
 
@@ -28,7 +29,7 @@
 import Data.Time.Format
 import System.Locale (defaultTimeLocale)
 
-import Web.Scotty
+import Web.Scotty.Trans
 
 data Session a
    = Session
@@ -41,30 +42,30 @@
 newtype ScottySM a = ScottySM { _unSessionManager :: SessionJar a }
 
 -- | Create a new session manager
-createSessionManager :: ScottyM (ScottySM a)
+createSessionManager :: MonadIO m => ScottyT e m (ScottySM a)
 createSessionManager =
-    do storage <- liftIO $ atomically $ newTVar (HM.empty)
+    do storage <- liftIO $ atomically $ newTVar HM.empty
        liftIO $ forkIO $ maintainSessions storage
        return $ ScottySM storage
 
 -- | Modify the current users session
-modifySession :: ScottySM a -> (Maybe a -> Maybe a) -> ActionM ()
+modifySession :: (MonadIO m, ScottyError e) => ScottySM a -> (Maybe a -> Maybe a) -> ActionT e m ()
 modifySession sm@(ScottySM storage) fun =
     do oldS <- readSession' sm id
        let newS = oldS { sess_content = fun (sess_content oldS) }
        liftIO $ insertSession newS storage
 
 -- | Read the current users session
-readSession :: ScottySM a -> ActionM (Maybe a)
+readSession :: (MonadIO m, ScottyError e) => ScottySM a -> ActionT e m (Maybe a)
 readSession sm = readSession' sm sess_content
 
-readSession' :: ScottySM a -> (Session a -> b) -> ActionM b
+readSession' :: (MonadIO m, ScottyError e) => ScottySM a -> (Session a -> b) -> ActionT e m b
 readSession' (ScottySM storage) fun =
     do mSession <- loadSession storage
        case mSession of
          Just s -> return $ fun s
          Nothing ->
-             do newS <- liftIO $ createSession
+             do newS <- liftIO createSession
                 liftIO $ insertSession newS storage
                 setCookie newS
                 return $ fun newS
@@ -98,17 +99,17 @@
 maintainSessions :: SessionJar a -> IO ()
 maintainSessions sessions =
   do now <- getCurrentTime
-     let stillValid sess = (sess_validUntil sess) > now
+     let stillValid sess = sess_validUntil sess > now
      atomically $ modifyTVar sessions $ \m -> HM.filter stillValid m
      threadDelay 1000000
      maintainSessions sessions
 
-setCookie :: Session a -> ActionM ()
+setCookie :: (Monad m, ScottyError e) => Session a -> ActionT e m ()
 setCookie sess =
     do let formattedExp = TL.pack $ formatTime defaultTimeLocale "%a, %d-%b-%Y %X %Z" (sess_validUntil sess)
        setHeader "Set-Cookie" $ "sid=" <> TL.fromStrict (sess_id sess) <> "; " <> formattedExp
 
-loadSession :: SessionJar a -> ActionM (Maybe (Session a))
+loadSession :: (MonadIO m, ScottyError e) => SessionJar a -> ActionT e m (Maybe (Session a))
 loadSession sessions =
     do req <- request
        liftIO $ getUserSession req sessions
diff --git a/scotty-session.cabal b/scotty-session.cabal
--- a/scotty-session.cabal
+++ b/scotty-session.cabal
@@ -1,5 +1,5 @@
 Name:                scotty-session
-Version:             0.0.2
+Version:             0.0.3
 Synopsis:            Adding session functionality to scotty
 Homepage:            https://github.com/agrafix/scotty-session
 Bug-reports:         https://github.com/agrafix/scotty-session/issues
@@ -19,7 +19,7 @@
 Library
   Exposed-modules:     Web.Scotty.Session
   default-language:    Haskell2010
-  build-depends:       base >= 3 && < 5, scotty >= 0.5, text, unordered-containers, transformers, stm, bytestring, blaze-builder, old-locale, time, http-types,
+  build-depends:       base >= 3 && < 5, scotty >= 0.6, text, unordered-containers, transformers, stm, bytestring, blaze-builder, old-locale, time, http-types,
                        wai, base64-bytestring, crypto-api
 
   GHC-options: -Wall -fno-warn-orphans -fno-warn-unused-do-bind