diff --git a/hasql-postgres.cabal b/hasql-postgres.cabal
--- a/hasql-postgres.cabal
+++ b/hasql-postgres.cabal
@@ -1,7 +1,7 @@
 name:
   hasql-postgres
 version:
-  0.3.0
+  0.3.1
 synopsis:
   A "PostgreSQL" backend for the "hasql" library
 description:
@@ -223,46 +223,7 @@
     monad-control == 0.3.*,
     deepseq == 1.3.*,
     list-t == 0.2.*,
-    mtl-prelude == 2.0.*,
-    base-prelude >= 0.1.3 && < 0.2,
-    base >= 4.5 && < 4.8
-
-
-benchmark profiling
-  type: 
-    exitcode-stdio-1.0
-  hs-source-dirs:
-    profiling
-  main-is:
-    Main.hs
-  ghc-options:
-    -O2
-    -threaded
-    "-with-rtsopts=-N"
-    -funbox-strict-fields
-    -fprof-auto
-    "-with-rtsopts=-N -p -s -h -i0.1"
-  default-extensions:
-    Arrows, BangPatterns, ConstraintKinds, DataKinds, DefaultSignatures, DeriveDataTypeable, DeriveFunctor, DeriveGeneric, EmptyDataDecls, FlexibleContexts, FlexibleInstances, FunctionalDependencies, GADTs, GeneralizedNewtypeDeriving, ImpredicativeTypes, LambdaCase, LiberalTypeSynonyms, MagicHash, MultiParamTypeClasses, MultiWayIf, NoImplicitPrelude, NoMonomorphismRestriction, OverloadedStrings, PatternGuards, ParallelListComp, QuasiQuotes, RankNTypes, RecordWildCards, ScopedTypeVariables, StandaloneDeriving, TemplateHaskell, TupleSections, TypeFamilies, TypeOperators, UnboxedTuples
-  default-language:
-    Haskell2010
-  build-depends:
-    postgresql-simple == 0.4.*,
-    hasql-postgres,
-    hasql-backend,
-    hasql >= 0.1.4 && < 0.2,
-    -- random:
-    QuickCheck == 2.7.*,
-    quickcheck-instances == 0.3.*,
-    -- data:
-    vector == 0.10.*,
-    time >= 1.4 && < 1.6,
-    text >= 1 && < 1.3,
-    scientific == 0.3.*,
-    -- general:
-    list-t == 0.2.*,
-    mtl-prelude == 2.0.*,
+    mtl-prelude < 3,
     base-prelude >= 0.1.3 && < 0.2,
     base >= 4.5 && < 4.8
-
 
diff --git a/profiling/Main.hs b/profiling/Main.hs
deleted file mode 100644
--- a/profiling/Main.hs
+++ /dev/null
@@ -1,36 +0,0 @@
-import BasePrelude
-import MTLPrelude
-import Data.Text (Text)
-import Data.Vector (Vector)
-import Data.Time
-import qualified Hasql as H
-import qualified Hasql.Postgres as H
-import qualified ListT
-import qualified Test.QuickCheck.Gen as Q
-import qualified Test.QuickCheck.Arbitrary as Q
-import qualified Test.QuickCheck.Instances
-
-
-main = do
-  rows :: [(Text, Day)] <- 
-    liftIO $ replicateM 100 $ 
-      (,) <$> Q.generate Q.arbitrary <*> Q.generate Q.arbitrary
-  H.session (H.Postgres host port user password db) (fromJust $ H.sessionSettings 1 30) $ do
-    H.tx Nothing $ do
-      H.unit [H.q|DROP TABLE IF EXISTS a|]
-      H.unit [H.q|CREATE TABLE a (id SERIAL NOT NULL, 
-                                  name VARCHAR NOT NULL, 
-                                  birthday DATE, 
-                                  PRIMARY KEY (id))|]
-      forM_ rows $ \(name, birthday) -> do
-        H.unit $ [H.q|INSERT INTO a (name, birthday) VALUES (?, ?)|] name birthday
-    replicateM_ 2000 $ do
-      H.tx Nothing $ do
-        H.list $ [H.q|SELECT * FROM a|] :: H.Tx H.Postgres s [(Int, Text, Day)]
-
-
-host = "localhost"
-port = 5432
-user = "postgres"
-password = ""
-db = "postgres"