diff --git a/certificate.cabal b/certificate.cabal
--- a/certificate.cabal
+++ b/certificate.cabal
@@ -1,5 +1,5 @@
 Name:                certificate
-Version:             1.3.2
+Version:             1.3.3
 Description:
     Certificates and Key reader/writer
     .
@@ -31,7 +31,7 @@
                    , mtl
                    , pem >= 0.1 && < 0.2
                    , asn1-data >= 0.7.1
-                   , crypto-pubkey-types >= 0.1 && < 0.2
+                   , crypto-pubkey-types >= 0.2 && < 0.3
                    , cryptohash
                    , containers
                    , directory