diff --git a/data-accessor.cabal b/data-accessor.cabal
--- a/data-accessor.cabal
+++ b/data-accessor.cabal
@@ -1,5 +1,5 @@
 Name:             data-accessor
-Version:          0.2.1.5
+Version:          0.2.1.6
 License:          BSD3
 License-File:     LICENSE
 Author:           Henning Thielemann <haskell@henning-thielemann.de>, Luke Palmer <lrpalmer@gmail.com>
diff --git a/src/Data/Accessor/MonadState.hs b/src/Data/Accessor/MonadState.hs
--- a/src/Data/Accessor/MonadState.hs
+++ b/src/Data/Accessor/MonadState.hs
@@ -7,7 +7,6 @@
 import qualified Control.Monad.Trans.State as State
 import qualified Control.Monad.Trans.Class as Trans
 import Control.Monad.Trans.State (State, runState, StateT(runStateT), )
-import Control.Monad.Trans.Class (MonadTrans)
 
 -- * accessors in the form of actions in the state monad