diff --git a/library/ListT.hs b/library/ListT.hs
--- a/library/ListT.hs
+++ b/library/ListT.hs
@@ -36,7 +36,7 @@
 where
 
 import BasePrelude hiding (toList, yield, fold, traverse, head, tail, take, drop, repeat, null, traverse_, splitAt)
-import Control.Monad.Morph
+import Control.Monad.Morph hiding (MonadTrans(..))
 import Control.Monad.IO.Class
 import Control.Monad.Trans.Class
 import Control.Monad.Trans.Reader
diff --git a/list-t.cabal b/list-t.cabal
--- a/list-t.cabal
+++ b/list-t.cabal
@@ -1,7 +1,7 @@
 name:
   list-t
 version:
-  0.2.4
+  0.2.5
 synopsis:
   ListT done right
 description:
@@ -46,7 +46,7 @@
     mmorph == 1.0.*,
     monad-control == 0.3.*,
     transformers-base == 0.4.*,
-    transformers == 0.4.*,
+    transformers >= 0.2 && < 0.5,
     base-prelude == 0.1.*
   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
@@ -64,7 +64,7 @@
   build-depends:
     list-t,
     HTF == 0.12.*,
-    mtl-prelude == 0.1.*,
+    mtl-prelude < 0.3,
     base-prelude >= 0.1.3 && < 0.2
   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