diff --git a/configure.ac b/configure.ac
index 0f9aacce..28583fdb 100755
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ dnl                                               -*- Autoconf -*-
 dnl Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.67])
-AC_INIT([shadowsocks], [1.4.6], [max.c.lv@gmail.com])
+AC_INIT([shadowsocks], [1.4.7], [max.c.lv@gmail.com])
 AC_CONFIG_SRCDIR([src/encrypt.c])
 AC_CONFIG_HEADERS([config.h])
 
diff --git a/debian/changelog b/debian/changelog
index 3854c48b..851523ed 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,10 @@
-shadowsocks (1.4.6-1) untable; urgency=low
+shadowsocks (1.4.7-1) unstable; urgency=low
+
+  * Add a new encryptor rc4-md5.
+
+ -- Max Lv <max.c.lv@gmail.com>  Tue, 09 Sep 2014 07:50:10 +0800
+
+shadowsocks (1.4.6-1) unstable; urgency=low
 
   * Add ACL support.
 
diff --git a/openwrt/Makefile b/openwrt/Makefile
index a3ba1fe9..7d9e72c2 100644
--- a/openwrt/Makefile
+++ b/openwrt/Makefile
@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=shadowsocks-libev
-PKG_VERSION:=1.4.6
+PKG_VERSION:=1.4.7
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE_URL:=https://github.com/madeye/shadowsocks-libev/archive
diff --git a/shadowsocks.8 b/shadowsocks.8
index fbc6e486..c45026dc 100644
--- a/shadowsocks.8
+++ b/shadowsocks.8
@@ -66,7 +66,7 @@ password.
 .TP
 .B \-m \fIencrypt_method\fP
 Set the cipher. Shadowsocks accepts 14 different ciphers: table, rc4,
-aes-128-cfb, aes-192-cfb, aes-256-cfb, bf-cfb, camellia-128-cfb,
+rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb, bf-cfb, camellia-128-cfb,
 camellia-192-cfb, camellia-256-cfb, cast5-cfb, des-cfb, idea-cfb, rc2-cfb
 and seed-cfb. The default method is \fItable\fP. If compiled with PolarSSL
 or custom OpenSSL builds, some of these ciphers may not work.
diff --git a/src/utils.c b/src/utils.c
index 38ecb032..0001844a 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -209,7 +209,7 @@ void usage()
     printf("          -k <password>              password of your remote server\n");
     printf("\n");
     printf("\n");
-    printf("          [-m <encrypt_method>]      encrypt method: table, rc4,\n");
+    printf("          [-m <encrypt_method>]      encrypt method: table, rc4, rc4-md5,\n");
     printf("                                     aes-128-cfb, aes-192-cfb, aes-256-cfb,\n");
     printf("                                     bf-cfb, camellia-128-cfb, camellia-192-cfb,\n");
     printf("                                     camellia-256-cfb, cast5-cfb, des-cfb,\n");