diff --git a/Database/Persist/Postgresql.hs b/Database/Persist/Postgresql.hs
--- a/Database/Persist/Postgresql.hs
+++ b/Database/Persist/Postgresql.hs
@@ -30,6 +30,7 @@
 
 import Control.Exception (SomeException, throw)
 import Control.Monad.IO.Class (MonadIO (..))
+import Control.Monad.Trans.Control (MonadBaseControl)
 import Data.List (intercalate)
 import Data.IORef
 import qualified Data.Map as Map
@@ -94,7 +95,8 @@
 
 -- | Same as 'withPostgresqlPool', but instead of opening a pool
 -- of connections, only one connection is opened.
-withPostgresqlConn :: C.ResourceIO m => ConnectionString -> (Connection -> m a) -> m a
+withPostgresqlConn :: (MonadIO m, MonadBaseControl IO m)
+                   => ConnectionString -> (Connection -> m a) -> m a
 withPostgresqlConn = withSqlConn . open'
 
 open' :: ConnectionString -> IO Connection
@@ -140,7 +142,7 @@
     _ <- PG.execute conn query (map P vals)
     return ()
 
-withStmt' :: C.ResourceIO m
+withStmt' :: C.MonadResource m
           => PG.Connection
           -> PG.Query
           -> [PersistValue]
diff --git a/persistent-postgresql.cabal b/persistent-postgresql.cabal
--- a/persistent-postgresql.cabal
+++ b/persistent-postgresql.cabal
@@ -1,5 +1,5 @@
 name:            persistent-postgresql
-version:         0.8.1.2
+version:         0.9.0
 license:         BSD3
 license-file:    LICENSE
 author:          Felipe Lessa, Michael Snoyman <michael@snoyman.com>
@@ -14,17 +14,17 @@
 
 library
     build-depends:   base                  >= 4        && < 5
-                   , transformers          >= 0.2.1    && < 0.3
+                   , transformers          >= 0.2.1    && < 0.4
                    , postgresql-simple     >= 0.0.3    && < 0.1
                    , postgresql-libpq      >= 0.6.1    && < 0.8
-                   , persistent            >= 0.8      && < 0.9
+                   , persistent            >= 0.9      && < 0.10
                    , containers            >= 0.2
                    , bytestring            >= 0.9      && < 0.10
                    , text                  >= 0.7      && < 0.12
                    , monad-control         >= 0.2      && < 0.4
                    , time                  >= 1.1
                    , aeson                 >= 0.5
-                   , conduit               >= 0.2
+                   , conduit               >= 0.4      && < 0.5
     exposed-modules: Database.Persist.Postgresql
     ghc-options:     -Wall