diff --git a/config/config.yaml b/config/config.yaml
index 991f3230a..ae32c2a61 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -216,7 +216,7 @@ chatPersistenceMysql: true
 tokenpolicy:
   accessSecret: "open_im_server" #token生成相关，默认即可
   # Token effective time day as a unit
-  accessExpire: 3650 #token过期时间（天） 默认即可
+  accessExpire: 90 #token过期时间（天） 默认即可
 messageverify:
   friendVerify: false
 
diff --git a/internal/rpc/conversation/conversaion.go b/internal/rpc/conversation/conversaion.go
index 6f79d89df..c769da2b7 100644
--- a/internal/rpc/conversation/conversaion.go
+++ b/internal/rpc/conversation/conversaion.go
@@ -37,7 +37,7 @@ func (rpc *rpcConversation) ModifyConversationField(c context.Context, req *pbCo
 			resp.CommonResp = &pbConversation.CommonResp{ErrCode: constant.ErrDB.ErrCode, ErrMsg: constant.ErrDB.ErrMsg}
 			return resp, nil
 		}
-		if groupInfo.Status == constant.GroupStatusDismissed && !req.Conversation.IsNotInGroup {
+		if groupInfo.Status == constant.GroupStatusDismissed && !req.Conversation.IsNotInGroup && req.FieldType != constant.FieldUnread {
 			errMsg := "group status is dismissed"
 			resp.CommonResp = &pbConversation.CommonResp{ErrCode: constant.ErrDB.ErrCode, ErrMsg: errMsg}
 			return resp, nil