diff --git a/app/mix/dao/mongo.go b/app/mix/dao/mongo.go
index e0102dcc..3131a149 100644
--- a/app/mix/dao/mongo.go
+++ b/app/mix/dao/mongo.go
@@ -2573,7 +2573,7 @@ func (m *Mongo) GetContactCustomerServiceSessionList(ctx *gin.Context, req *cont
 	query := qmgo.M{
 		"del_flag": 0,
 	}
-	err := col.Find(ctx, query).Sort("-ct").Skip(int64(req.Offset)).Limit(int64(req.Limit)).All(&list)
+	err := col.Find(ctx, query).Sort("-ut").Skip(int64(req.Offset)).Limit(int64(req.Limit)).All(&list)
 	if err == qmgo.ErrNoSuchDocuments {
 		err = nil
 		return nil, err