diff --git a/net/src/main/java/com/zfoo/net/packet/common/Heartbeat.java b/net/src/main/java/com/zfoo/net/packet/common/Heartbeat.java
index 999ffc11..33903bab 100644
--- a/net/src/main/java/com/zfoo/net/packet/common/Heartbeat.java
+++ b/net/src/main/java/com/zfoo/net/packet/common/Heartbeat.java
@@ -13,12 +13,14 @@
 
 package com.zfoo.net.packet.common;
 
+import com.baidu.bjf.remoting.protobuf.annotation.ProtobufClass;
 import com.zfoo.protocol.IPacket;
 
 /**
  * @author jaysunxiao
  * @version 3.0
  */
+@ProtobufClass
 public class Heartbeat implements IPacket {
 
     public static final transient short PROTOCOL_ID = 102;
diff --git a/net/src/main/java/com/zfoo/net/packet/common/Ping.java b/net/src/main/java/com/zfoo/net/packet/common/Ping.java
index 3cc01ef8..5cc6ae2d 100644
--- a/net/src/main/java/com/zfoo/net/packet/common/Ping.java
+++ b/net/src/main/java/com/zfoo/net/packet/common/Ping.java
@@ -13,12 +13,14 @@
 
 package com.zfoo.net.packet.common;
 
+import com.baidu.bjf.remoting.protobuf.annotation.ProtobufClass;
 import com.zfoo.protocol.IPacket;
 
 /**
  * @author jaysunxiao
  * @version 3.0
  */
+@ProtobufClass
 public class Ping implements IPacket {
 
     public static final transient short PROTOCOL_ID = 103;
diff --git a/net/src/main/java/com/zfoo/net/packet/common/Pong.java b/net/src/main/java/com/zfoo/net/packet/common/Pong.java
index 369bbbf2..653f1e60 100644
--- a/net/src/main/java/com/zfoo/net/packet/common/Pong.java
+++ b/net/src/main/java/com/zfoo/net/packet/common/Pong.java
@@ -13,12 +13,15 @@
 
 package com.zfoo.net.packet.common;
 
+import com.baidu.bjf.remoting.protobuf.annotation.Protobuf;
+import com.baidu.bjf.remoting.protobuf.annotation.ProtobufClass;
 import com.zfoo.protocol.IPacket;
 
 /**
  * @author jaysunxiao
  * @version 3.0
  */
+@ProtobufClass
 public class Pong implements IPacket {
 
     public static final transient short PROTOCOL_ID = 104;
@@ -26,6 +29,7 @@ public class Pong implements IPacket {
     /**
      * 服务器当前的时间戳
      */
+    @Protobuf(order = 1)
     private long time;
 
     public static Pong valueOf(long time) {