diff --git a/Control/Monad/Atom.hs b/Control/Monad/Atom.hs
--- a/Control/Monad/Atom.hs
+++ b/Control/Monad/Atom.hs
@@ -20,12 +20,15 @@
 module Control.Monad.Atom
     ( AtomTable
     , Atom
+    , AtomT
     , toAtom
     , fromAtom
     , maybeToAtom
     , empty
     , evalAtom
+    , evalAtomT
     , runAtom
+    , runAtomT
     , mapping
     )
 where
diff --git a/monad-atom.cabal b/monad-atom.cabal
--- a/monad-atom.cabal
+++ b/monad-atom.cabal
@@ -7,7 +7,7 @@
 -- The package version. See the Haskell package versioning policy
 -- (http://www.haskell.org/haskellwiki/Package_versioning_policy) for
 -- standards guiding when and how versions should be incremented.
-Version:             0.4.0
+Version:             0.4.1
 
 -- A short (one-line) description of the package.
 Synopsis:            Monadically convert object to unique integers and back.