diff --git a/CHANGELOG.md b/CHANGELOG.md
index a5c11df..9817a21 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -74,5 +74,7 @@
  * fix: Add clear all channel red dots method
  ### 1.3.7
  * fix: Add send message can reminder member method
- ### 1.3.7
- * fix: Update message save remote extra method
\ No newline at end of file
+ ### 1.3.8
+ * fix: Update message save remote extra method
+ ### 1.3.9
+ * fix: Update RecvAckPacket header encode method
\ No newline at end of file
diff --git a/README.md b/README.md
index 4467372..da50fc6 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 #### 安装
 ```
 dependencies:
-  wukongimfluttersdk: ^1.3.8
+  wukongimfluttersdk: ^1.3.9
 ```
 #### 引入
 ```dart
diff --git a/lib/manager/connect_manager.dart b/lib/manager/connect_manager.dart
index c8e4fb0..f66b065 100644
--- a/lib/manager/connect_manager.dart
+++ b/lib/manager/connect_manager.dart
@@ -283,7 +283,10 @@ class WKConnectionManager {
     } else if (packet.header.packetType == PacketType.recv) {
       var recvPacket = packet as RecvPacket;
       _verifyRecvMsg(recvPacket);
-      _sendReceAckPacket(recvPacket.messageID, recvPacket.messageSeq);
+      if (!recvPacket.header.noPersist) {
+        _sendReceAckPacket(
+            recvPacket.messageID, recvPacket.messageSeq, recvPacket.header);
+      }
     } else if (packet.header.packetType == PacketType.sendack) {
       var sendack = packet as SendAckPacket;
       WKIM.shared.messageManager.updateSendResult(sendack.messageID,
@@ -314,8 +317,11 @@ class WKConnectionManager {
     // WKDBHelper.shared.close();
   }
 
-  _sendReceAckPacket(BigInt messageID, int messageSeq) {
+  _sendReceAckPacket(BigInt messageID, int messageSeq, PacketHeader header) {
     RecvAckPacket ackPacket = RecvAckPacket();
+    ackPacket.header.noPersist = header.noPersist;
+    ackPacket.header.syncOnce = header.syncOnce;
+    ackPacket.header.showUnread = header.showUnread;
     ackPacket.messageID = messageID;
     ackPacket.messageSeq = messageSeq;
     _sendPacket(ackPacket);
diff --git a/pubspec.yaml b/pubspec.yaml
index 57d3b4d..206feab 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -15,7 +15,7 @@ description: wukong IM flutter sdk
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.3.8
+version: 1.3.9
 homepage: https://github.com/WuKongIM/WuKongIMFlutterSDK
 
 environment: