diff --git a/iap-verifier.cabal b/iap-verifier.cabal
--- a/iap-verifier.cabal
+++ b/iap-verifier.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                iap-verifier
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            A simple wrapper of In-App-Purchase receipt validate APIs.
 -- description:
 homepage:            http://github.com/tattsun/iap-verifier
diff --git a/src/Network/IAP/Verifier.hs b/src/Network/IAP/Verifier.hs
--- a/src/Network/IAP/Verifier.hs
+++ b/src/Network/IAP/Verifier.hs
@@ -79,7 +79,6 @@
       request = requestRaw { requestBody = RequestBodyLBS payload
                            , method = "POST"
                            }
-  print request
   withManager $ \manager -> do
     response <- http request manager
     responseBody response C.$$+- do