diff --git a/Database/Persist/Postgresql.hs b/Database/Persist/Postgresql.hs
--- a/Database/Persist/Postgresql.hs
+++ b/Database/Persist/Postgresql.hs
@@ -52,6 +52,7 @@
 import Data.Aeson
 import Control.Monad (forM, mzero)
 import System.Environment (getEnvironment)
+import Data.Int (Int64)
 
 
 -- | A @libpq@ connection string.  A simple example of connection
@@ -144,10 +145,8 @@
     , T.unpack $ escape id'
     ]
 
-execute' :: PG.Connection -> PG.Query -> [PersistValue] -> IO ()
-execute' conn query vals = do
-    _ <- PG.execute conn query (map P vals)
-    return ()
+execute' :: PG.Connection -> PG.Query -> [PersistValue] -> IO Int64
+execute' conn query vals = PG.execute conn query (map P vals)
 
 withStmt' :: MonadResource m
           => PG.Connection
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:         1.1.2.1
+version:         1.1.3
 license:         MIT
 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    && < 0.4
+                   , transformers          >= 0.2.1
                    , postgresql-simple     >= 0.2      && < 0.3
                    , postgresql-libpq      >= 0.6.1    && < 0.9
-                   , persistent            >= 1.1.2    && < 1.2
+                   , persistent            >= 1.1.5    && < 1.2
                    , containers            >= 0.2
                    , bytestring            >= 0.9
-                   , text                  >= 0.7      && < 0.12
-                   , monad-control         >= 0.2      && < 0.4
+                   , text                  >= 0.7
+                   , monad-control         >= 0.2
                    , time                  >= 1.1
                    , aeson                 >= 0.5
-                   , conduit               >= 0.5.3    && < 0.6
+                   , conduit               >= 0.5.3
     exposed-modules: Database.Persist.Postgresql
     ghc-options:     -Wall