diff --git a/shadowsocks-csharp/Controller/UpdateChecker.cs b/shadowsocks-csharp/Controller/UpdateChecker.cs
index 7d93e18c..ca846936 100755
--- a/shadowsocks-csharp/Controller/UpdateChecker.cs
+++ b/shadowsocks-csharp/Controller/UpdateChecker.cs
@@ -21,7 +21,7 @@ public class UpdateChecker
 
         public const string Name = "ShadowsocksR";
         public const string Copyright = "Copyright © BreakWa11 2017. Fork from Shadowsocks by clowwindy";
-        public const string Version = "4.8.0";
+        public const string Version = "4.8.1";
 #if !_DOTNET_4_0
         public const string NetVer = "2.0";
 #elif !_CONSOLE
diff --git a/shadowsocks-csharp/Data/libsscrypto.dll.gz b/shadowsocks-csharp/Data/libsscrypto.dll.gz
index 93334251..afa05dec 100644
Binary files a/shadowsocks-csharp/Data/libsscrypto.dll.gz and b/shadowsocks-csharp/Data/libsscrypto.dll.gz differ
diff --git a/shadowsocks-csharp/Data/libsscrypto64.dll.gz b/shadowsocks-csharp/Data/libsscrypto64.dll.gz
index 262c4f44..b06eb3e0 100644
Binary files a/shadowsocks-csharp/Data/libsscrypto64.dll.gz and b/shadowsocks-csharp/Data/libsscrypto64.dll.gz differ
diff --git a/shadowsocks-csharp/View/ConfigForm.Designer.cs b/shadowsocks-csharp/View/ConfigForm.Designer.cs
index aec8b144..4385ebe2 100755
--- a/shadowsocks-csharp/View/ConfigForm.Designer.cs
+++ b/shadowsocks-csharp/View/ConfigForm.Designer.cs
@@ -478,7 +478,9 @@ private void InitializeComponent()
             "auth_chain_a",
             "auth_chain_b",
             "auth_chain_c",
-            "auth_chain_d"});
+            "auth_chain_d",
+            "auth_chain_e",
+            "auth_chain_f"});
             this.TCPProtocolComboBox.Location = new System.Drawing.Point(108, 117);
             this.TCPProtocolComboBox.Margin = new System.Windows.Forms.Padding(3, 3, 3, 7);
             this.TCPProtocolComboBox.Name = "TCPProtocolComboBox";