diff --git a/library/Strelka/Prelude.hs b/library/Strelka/Prelude.hs
--- a/library/Strelka/Prelude.hs
+++ b/library/Strelka/Prelude.hs
@@ -25,7 +25,7 @@
 -- mtl
 -------------------------
 import Control.Monad.Cont.Class as Exports
-import Control.Monad.Error.Class as Exports hiding (Error(..))
+import Control.Monad.Error.Class as Exports hiding (Error(..), liftEither)
 import Control.Monad.Reader.Class as Exports
 import Control.Monad.State.Class as Exports
 import Control.Monad.Writer.Class as Exports
diff --git a/strelka.cabal b/strelka.cabal
--- a/strelka.cabal
+++ b/strelka.cabal
@@ -1,7 +1,7 @@
 name:
   strelka
 version:
-  2.0.2
+  2.0.2.1
 category:
   Web
 synopsis: