diff --git a/broker/migrate/mysql/V14__alter_createtime_user_group_table.sql b/broker/migrate/mysql/V14__alter_createtime_user_group_table.sql
new file mode 100755
index 00000000..967c9cd5
--- /dev/null
+++ b/broker/migrate/mysql/V14__alter_createtime_user_group_table.sql
@@ -0,0 +1,2 @@
+alter table t_user MODIFY column `_createTime` DATETIME NOT NULL DEFAULT NOW();
+alter table t_group MODIFY column `_createTime` DATETIME NOT NULL DEFAULT NOW();