diff --git a/tls.cabal b/tls.cabal
--- a/tls.cabal
+++ b/tls.cabal
@@ -1,5 +1,5 @@
 Name:                tls
-Version:             0.8.0
+Version:             0.8.1
 Description:
    Native Haskell TLS and SSL protocol implementation for server and client.
    .
@@ -42,7 +42,7 @@
                    , bytestring
                    , crypto-api >= 0.5
                    , cryptocipher >= 0.2.5
-                   , certificate >= 0.9.3 && < 1.0
+                   , certificate >= 0.9.4 && < 1.0
   Exposed-modules:   Network.TLS
                      Network.TLS.Cipher
                      Network.TLS.Compression