diff --git a/operational-class.cabal b/operational-class.cabal
--- a/operational-class.cabal
+++ b/operational-class.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                operational-class
-version:             0.2.0.1
+version:             0.2.0.2
 synopsis:            MonadProgram typeclass for the operational package
 -- description:
 homepage:            https://github.com/srijs/haskell-operational-class
diff --git a/src/Control/Monad/Operational/Class.hs b/src/Control/Monad/Operational/Class.hs
--- a/src/Control/Monad/Operational/Class.hs
+++ b/src/Control/Monad/Operational/Class.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE MultiParamTypeClasses, FunctionalDependencies, FlexibleInstances, UndecidableInstances, GADTs #-}
+{-# LANGUAGE Safe, MultiParamTypeClasses, FunctionalDependencies, FlexibleInstances, UndecidableInstances, GADTs #-}
 
 module Control.Monad.Operational.Class where