diff --git a/Yesod/Auth.hs b/Yesod/Auth.hs
--- a/Yesod/Auth.hs
+++ b/Yesod/Auth.hs
@@ -233,10 +233,17 @@
         ap:_ -> apDispatch ap method pieces
 
 maybeAuth :: ( YesodAuth m
+#if MIN_VERSION_persistent(1, 1, 0)
+             , PersistMonadBackend (b (GHandler s m)) ~ PersistEntityBackend val
              , b ~ YesodPersistBackend m
+             , Key val ~ AuthId m
+             , PersistStore (b (GHandler s m))
+#else
+             , b ~ YesodPersistBackend m
              , b ~ PersistEntityBackend val
              , Key b val ~ AuthId m
              , PersistStore b (GHandler s m)
+#endif
              , PersistEntity val
              , YesodPersist m
              ) => GHandler s m (Maybe (Entity val))
@@ -250,9 +257,15 @@
 
 requireAuth :: ( YesodAuth m
                , b ~ YesodPersistBackend m
+#if MIN_VERSION_persistent(1, 1, 0)
+               , PersistMonadBackend (b (GHandler s m)) ~ PersistEntityBackend val
+               , Key val ~ AuthId m
+               , PersistStore (b (GHandler s m))
+#else
                , b ~ PersistEntityBackend val
                , Key b val ~ AuthId m
                , PersistStore b (GHandler s m)
+#endif
                , PersistEntity val
                , YesodPersist m
                ) => GHandler s m (Entity val)
diff --git a/Yesod/Auth/HashDB.hs b/Yesod/Auth/HashDB.hs
--- a/Yesod/Auth/HashDB.hs
+++ b/Yesod/Auth/HashDB.hs
@@ -5,6 +5,7 @@
 {-# LANGUAGE TemplateHaskell            #-}
 {-# LANGUAGE OverloadedStrings          #-}
 {-# LANGUAGE GADTs                      #-}
+{-# LANGUAGE CPP                        #-}
 -------------------------------------------------------------------------------
 -- |
 -- Module      :  Yesod.Auth.HashDB
@@ -133,14 +134,24 @@
 -- | Given a user ID and password in plaintext, validate them against
 --   the database values.
 validateUser :: ( YesodPersist yesod
+#if MIN_VERSION_persistent(1, 1, 0)
                 , b ~ YesodPersistBackend yesod
+                , PersistMonadBackend (b (GHandler sub yesod)) ~ PersistEntityBackend user
+                , PersistUnique (b (GHandler sub yesod))
+#else
+                , b ~ YesodPersistBackend yesod
                 , b ~ PersistEntityBackend user
                 , PersistStore b (GHandler sub yesod)
                 , PersistUnique b (GHandler sub yesod)
+#endif
                 , PersistEntity user
                 , HashDBUser    user
                 ) => 
+#if MIN_VERSION_persistent(1, 1, 0)
+                Unique user     -- ^ User unique identifier
+#else
                 Unique user b   -- ^ User unique identifier
+#endif
              -> Text            -- ^ Password in plaint-text
              -> GHandler sub yesod Bool
 validateUser userID passwd = do
@@ -160,12 +171,23 @@
 -- | Handle the login form. First parameter is function which maps
 --   username (whatever it might be) to unique user ID.
 postLoginR :: ( YesodAuth y, YesodPersist y
+              , HashDBUser user, PersistEntity user
+#if MIN_VERSION_persistent(1, 1, 0)
               , b ~ YesodPersistBackend y
+              , PersistMonadBackend (b (GHandler Auth y)) ~ PersistEntityBackend user
+              , PersistUnique (b (GHandler Auth y))
+#else
+              , b ~ YesodPersistBackend y
               , b ~ PersistEntityBackend user
-              , HashDBUser user, PersistEntity user
               , PersistStore b (GHandler Auth y)
-              , PersistUnique b (GHandler Auth y))
-           => (Text -> Maybe (Unique user b)) 
+              , PersistUnique b (GHandler Auth y)
+#endif
+              )
+#if MIN_VERSION_persistent(1, 1, 0)
+           => (Text -> Maybe (Unique user))
+#else
+           => (Text -> Maybe (Unique user b))
+#endif
            -> GHandler Auth y ()
 postLoginR uniq = do
     (mu,mp) <- runInputPost $ (,)
@@ -185,13 +207,25 @@
 --   can be used if authHashDB is the only plugin in use.
 getAuthIdHashDB :: ( YesodAuth master, YesodPersist master
                    , HashDBUser user, PersistEntity user
+#if MIN_VERSION_persistent(1, 1, 0)
+                   , Key user ~ AuthId master
+                   , b ~ YesodPersistBackend master
+                   , PersistMonadBackend (b (GHandler sub master)) ~ PersistEntityBackend user
+                   , PersistUnique (b (GHandler sub master))
+#else
                    , Key b user ~ AuthId master
                    , b ~ YesodPersistBackend master
                    , b ~ PersistEntityBackend user
                    , PersistUnique b (GHandler sub master)
-                   , PersistStore b (GHandler sub master))
+                   , PersistStore b (GHandler sub master)
+#endif
+                   )
                 => (AuthRoute -> Route master)   -- ^ your site's Auth Route
+#if MIN_VERSION_persistent(1, 1, 0)
+                -> (Text -> Maybe (Unique user)) -- ^ gets user ID
+#else
                 -> (Text -> Maybe (Unique user b)) -- ^ gets user ID
+#endif
                 -> Creds master                  -- ^ the creds argument
                 -> GHandler sub master (Maybe (AuthId master))
 getAuthIdHashDB authR uniq creds = do
@@ -215,11 +249,18 @@
 authHashDB :: ( YesodAuth m, YesodPersist m
               , HashDBUser user
               , PersistEntity user
+#if MIN_VERSION_persistent(1, 1, 0)
               , b ~ YesodPersistBackend m
+              , PersistMonadBackend (b (GHandler Auth m)) ~ PersistEntityBackend user
+              , PersistUnique (b (GHandler Auth m)))
+           => (Text -> Maybe (Unique user)) -> AuthPlugin m
+#else
+              , b ~ YesodPersistBackend m
               , b ~ PersistEntityBackend user
               , PersistStore b (GHandler Auth m)
               , PersistUnique b (GHandler Auth m))
            => (Text -> Maybe (Unique user b)) -> AuthPlugin m
+#endif
 authHashDB uniq = AuthPlugin "hashdb" dispatch $ \tm -> toWidget [hamlet|
 $newline never
     <div id="header">
diff --git a/yesod-auth.cabal b/yesod-auth.cabal
--- a/yesod-auth.cabal
+++ b/yesod-auth.cabal
@@ -1,5 +1,5 @@
 name:            yesod-auth
-version:         1.1.2
+version:         1.1.2.1
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman, Patrick Brisbin
@@ -32,8 +32,8 @@
                    , unordered-containers
                    , yesod-form              >= 1.1       && < 1.3
                    , transformers            >= 0.2.2     && < 0.4
-                   , persistent              >= 1.0       && < 1.1
-                   , persistent-template     >= 1.0       && < 1.1
+                   , persistent              >= 1.0       && < 1.2
+                   , persistent-template     >= 1.0       && < 1.2
                    , SHA                     >= 1.4.1.3   && < 1.7
                    , http-conduit            >= 1.5       && < 1.9
                    , aeson                   >= 0.5