diff --git a/Control/Monad/CryptoRandom.hs b/Control/Monad/CryptoRandom.hs
--- a/Control/Monad/CryptoRandom.hs
+++ b/Control/Monad/CryptoRandom.hs
@@ -47,6 +47,7 @@
 import Data.List (foldl')
 import Data.Word
 import Data.Proxy
+import Data.Tagged
 import qualified Data.ByteString as B
 
 -- |@MonadCRandom m@ represents a monad that can produce
diff --git a/monadcryptorandom.cabal b/monadcryptorandom.cabal
--- a/monadcryptorandom.cabal
+++ b/monadcryptorandom.cabal
@@ -1,5 +1,5 @@
 name:           monadcryptorandom
-version:        0.5.2
+version:        0.5.3
 license:        BSD3
 license-file:   LICENSE
 copyright:      Thomas DuBuisson <thomas.dubuisson@gmail.com>