diff --git a/Data/ASN1/Parse.hs b/Data/ASN1/Parse.hs
--- a/Data/ASN1/Parse.hs
+++ b/Data/ASN1/Parse.hs
@@ -7,6 +7,7 @@
 --
 -- A parser combinator for ASN1 Stream.
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE CPP #-}
 module Data.ASN1.Parse
     ( ParseASN1
     -- * run
@@ -27,17 +28,27 @@
 import Data.ASN1.Types
 import Data.ASN1.Stream
 import Control.Monad.State
-import Control.Monad.Error
 import Control.Applicative (Applicative, (<$>))
 
+#if MIN_VERSION_mtl(2,2,1)
+import Control.Monad.Except
+runErrT :: ExceptT e m a -> m (Either e a)
+runErrT = runExceptT
+type ErrT = ExceptT
+#else
+import Control.Monad.Error
+runErrT = runErrorT
+type ErrT = ErrorT
+#endif
+
 -- | Parse ASN1 Monad
-newtype ParseASN1 a = P { runP :: ErrorT String (State [ASN1]) a }
+newtype ParseASN1 a = P { runP :: ErrT String (State [ASN1]) a }
     deriving (Functor, Applicative, Monad, MonadError String, MonadState [ASN1])
 
 -- | run the parse monad over a stream and returns the result and the remaining ASN1 Stream.
 runParseASN1State :: ParseASN1 a -> [ASN1] -> Either String (a,[ASN1])
 runParseASN1State f s =
-    case runState (runErrorT (runP f)) s of
+    case runState (runErrT (runP f)) s of
         (Left err, _) -> Left err
         (Right r, l)  -> Right (r,l)
 
diff --git a/asn1-parse.cabal b/asn1-parse.cabal
--- a/asn1-parse.cabal
+++ b/asn1-parse.cabal
@@ -1,5 +1,5 @@
 Name:                asn1-parse
-Version:             0.8.1
+Version:             0.9.0
 Description:         Simple monadic parser for ASN1 stream types, when ASN1 pattern matching is not convenient.
 License:             BSD3
 License-file:        LICENSE
@@ -18,9 +18,8 @@
                    , bytestring
                    , text >= 0.11
                    , mtl
-                   , time
-                   , asn1-types >= 0.2 && < 0.3
-                   , asn1-encoding >= 0.8
+                   , asn1-types >= 0.3 && < 0.4
+                   , asn1-encoding >= 0.9
 
   Exposed-modules:   Data.ASN1.Parse
   ghc-options:       -Wall