diff --git a/KBEngine.cs b/KBEngine.cs
index 503ff0b..367d499 100644
--- a/KBEngine.cs
+++ b/KBEngine.cs
@@ -86,7 +86,7 @@ public enum CLIENT_TYPE
 		
 		// 服务端与客户端的版本号以及协议MD5
 		public string serverVersion = "";
-		public string clientVersion = "0.6.15";
+		public string clientVersion = "0.6.21";
 		public string serverScriptVersion = "";
 		public string clientScriptVersion = "0.1.0";
 		public string serverProtocolMD5 = "";