diff --git a/Control/Monad/Classes.hs b/Control/Monad/Classes.hs
--- a/Control/Monad/Classes.hs
+++ b/Control/Monad/Classes.hs
@@ -1,6 +1,7 @@
 module Control.Monad.Classes
   ( -- * State
     MonadState
+  , state
   , get
   , put
   , modify
diff --git a/monad-classes.cabal b/monad-classes.cabal
--- a/monad-classes.cabal
+++ b/monad-classes.cabal
@@ -1,5 +1,5 @@
 name:                monad-classes
-version:             0.3.0.1
+version:             0.3.1.0
 synopsis:            more flexible mtl
 -- description:
 homepage:            https://github.com/feuerbach/monad-classes