diff --git a/android/build.gradle b/android/build.gradle
index 19670f1..a65726a 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -41,5 +41,5 @@ android {
     }
 }
 dependencies {
-    implementation 'io.openim:client-sdk:2.0.18@aar'
+    implementation 'io.openim:client-sdk:2.0.19@aar'
 }
\ No newline at end of file
diff --git a/lib/src/enum/message_type.dart b/lib/src/enum/message_type.dart
index d393e06..cf71f11 100644
--- a/lib/src/enum/message_type.dart
+++ b/lib/src/enum/message_type.dart
@@ -7,8 +7,6 @@ class MessageType {
   static const file = 105;
   static const at_text = 106;
   static const merger = 107;
-
-  // static const forward = 108;
   static const card = 108;
   static const location = 109;
   static const custom = 110;
@@ -20,8 +18,8 @@ class MessageType {
 
   ///
   static const notificationBegin = 1000;
-  static const friendNotificationBegin = 1200;
 
+  static const friendNotificationBegin = 1200;
   static const friendApplicationApprovedNotification = 1201;
   static const friendApplicationRejectedNotification = 1202;
   static const friendApplicationNotification = 1203;
@@ -31,6 +29,7 @@ class MessageType {
   static const blackAddedNotification = 1207;
   static const blackDeletedNotification = 1208;
   static const friendNotificationEnd = 1299;
+
   static const conversationChangeNotification = 1300;
 
   static const userNotificationBegin = 1301;
@@ -38,7 +37,6 @@ class MessageType {
   static const userNotificationEnd = 1399;
 
   static const groupNotificationBegin = 1500;
-
   static const groupCreatedNotification = 1501;
   static const groupInfoSetNotification = 1502;
   static const joinGroupApplicationNotification = 1503;
@@ -49,10 +47,12 @@ class MessageType {
   static const memberKickedNotification = 1508;
   static const memberInvitedNotification = 1509;
   static const memberEnterNotification = 1510;
+  static const dismissGroupNotification = 1511;
   static const groupNotificationEnd = 1599;
 
   static const signalingNotificationBegin = 1600;
   static const signalingNotification = 1601;
   static const signalingNotificationEnd = 1699;
+
   static const notificationEnd = 2000;
 }
diff --git a/lib/src/manager/im_group_manager.dart b/lib/src/manager/im_group_manager.dart
index 25e68b9..80f3e8f 100644
--- a/lib/src/manager/im_group_manager.dart
+++ b/lib/src/manager/im_group_manager.dart
@@ -329,7 +329,7 @@ class GroupManager {
       _channel.invokeMethod(
           'dismissGroup',
           _buildParam({
-            'gid': 'groupID',
+            'gid': groupID,
             'operationID': Utils.checkOperationID(operationID),
           }));
 
diff --git a/lib/src/manager/im_message_manager.dart b/lib/src/manager/im_message_manager.dart
index bb400ab..78fd59d 100644
--- a/lib/src/manager/im_message_manager.dart
+++ b/lib/src/manager/im_message_manager.dart
@@ -538,7 +538,7 @@ class MessageManager {
     List<String> keywordList = const [],
     int keywordListMatchType = 0,
     List<String> senderUserIDList = const [],
-    List<String> messageTypeList = const [],
+    List<int> messageTypeList = const [],
     int searchTimePosition = 0,
     int searchTimePeriod = 0,
     int pageIndex = 1,