diff --git a/Data/X509/Validation/Fingerprint.hs b/Data/X509/Validation/Fingerprint.hs
--- a/Data/X509/Validation/Fingerprint.hs
+++ b/Data/X509/Validation/Fingerprint.hs
@@ -5,6 +5,7 @@
 -- Stability   : experimental
 -- Portability : unknown
 --
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
 module Data.X509.Validation.Fingerprint
     ( Fingerprint(..)
     , getFingerprint
@@ -13,16 +14,14 @@
 import Crypto.Hash
 import Data.X509
 import Data.ASN1.Types
-import Data.ByteArray (convert)
+import Data.ByteArray (convert, ByteArrayAccess)
 import Data.ByteString (ByteString)
-import Data.Byteable
 
 -- | Fingerprint of a certificate
 newtype Fingerprint = Fingerprint ByteString
     deriving (Show,Eq)
 
-instance Byteable Fingerprint where
-    toBytes (Fingerprint bs) = bs
+instance ByteArrayAccess Fingerprint
 
 -- | Get the fingerprint of the whole signed object
 -- using the hashing algorithm specified
diff --git a/x509-validation.cabal b/x509-validation.cabal
--- a/x509-validation.cabal
+++ b/x509-validation.cabal
@@ -1,5 +1,5 @@
 Name:                x509-validation
-version:             1.6.9
+version:             1.6.10
 Description:         X.509 Certificate and CRL validation
 License:             BSD3
 License-file:        LICENSE
@@ -18,12 +18,11 @@
   Build-Depends:     base >= 3 && < 5
                    , bytestring
                    , memory
-                   , byteable
                    , mtl
                    , containers
                    , hourglass
                    , data-default-class
-                   , pem >= 0.1 && < 0.3
+                   , pem >= 0.1
                    , asn1-types >= 0.3 && < 0.4
                    , asn1-encoding >= 0.9 && < 0.10
                    , x509 >= 1.6.5