diff --git a/peyotls.cabal b/peyotls.cabal
--- a/peyotls.cabal
+++ b/peyotls.cabal
@@ -2,7 +2,7 @@
 cabal-version:	>= 1.8
 
 name:		peyotls
-version:	0.1.4.1
+version:	0.1.4.2
 stability:	Experimental
 author:		Yoshikuni Jujo <PAF01143@nifty.ne.jp>
 maintainer:	Yoshikuni Jujo <PAF01143@nifty.ne.jp>
@@ -281,7 +281,7 @@
 source-repository	this
     type:	git
     location:	git://github.com/YoshikuniJujo/peyotls.git
-    tag:	peyotls-0.1.4.1
+    tag:	peyotls-0.1.4.2
 
 library
     hs-source-dirs:	src
diff --git a/src/Network/PeyoTLS/TChan/Client.hs b/src/Network/PeyoTLS/TChan/Client.hs
--- a/src/Network/PeyoTLS/TChan/Client.hs
+++ b/src/Network/PeyoTLS/TChan/Client.hs
@@ -59,10 +59,10 @@
 		sn <- get
 		modify succ
 		pre <- lift $ hlGet h 3
-		liftBase $ print pre
+--		liftBase $ print pre
 		Right n <- B.decode <$> lift (hlGet h 2)
 		enc <- lift $ hlGet h n
-		liftBase $ print enc
+--		liftBase $ print enc
 		let	hs = case rcs of
 				AES_128_CBC_SHA -> sha1
 				AES_128_CBC_SHA256 -> sha256
@@ -105,10 +105,10 @@
 		sn <- get
 		modify succ
 		pre <- lift $ hlGet h 3
-		liftBase $ print pre
+--		liftBase $ print pre
 		Right n <- B.decode <$> lift (hlGet h 2)
 		enc <- lift $ hlGet h n
-		liftBase $ print enc
+--		liftBase $ print enc
 		let	hs = case rcs of
 				AES_128_CBC_SHA -> sha1
 				AES_128_CBC_SHA256 -> sha256
diff --git a/src/Network/PeyoTLS/TChan/Server.hs b/src/Network/PeyoTLS/TChan/Server.hs
--- a/src/Network/PeyoTLS/TChan/Server.hs
+++ b/src/Network/PeyoTLS/TChan/Server.hs
@@ -51,9 +51,9 @@
 				pre <- lift $ hlGet h 3
 				when (BSC.null pre) $
 					lift (hlClose h) >> error "bad"
-				liftBase $ print pre
+--				liftBase $ print pre
 				Right n <- B.decode <$> lift (hlGet h 2)
-				liftBase $ print n
+--				liftBase $ print n
 				renc <- lift $ hlGet h n
 				let Right rpln = decrypt sha1 rk rmk sn pre renc
 				liftBase $ do
