diff --git a/net/src/main/java/com/zfoo/net/core/json/JsonTcpServer.java b/net/src/main/java/com/zfoo/net/core/json/JsonTcpServer.java
index 94eab943b..d84f3a960 100644
--- a/net/src/main/java/com/zfoo/net/core/json/JsonTcpServer.java
+++ b/net/src/main/java/com/zfoo/net/core/json/JsonTcpServer.java
@@ -17,7 +17,6 @@
 import com.zfoo.net.core.HostAndPort;
 import com.zfoo.net.handler.ServerRouteHandler;
 import com.zfoo.net.handler.codec.json.JsonTcpCodecHandler;
-import com.zfoo.net.handler.codec.tcp.TcpCodecHandler;
 import com.zfoo.net.handler.idle.ServerIdleHandler;
 import io.netty.channel.socket.SocketChannel;
 import io.netty.handler.timeout.IdleStateHandler;