diff --git a/doc/readme.md b/doc/readme.md
index 0da6f40..b780ef8 100644
--- a/doc/readme.md
+++ b/doc/readme.md
@@ -4,11 +4,8 @@
 
 ```sql
 ALTER TABLE `sys_user_expand`
-   ADD COLUMN `wx_miniapp_app_id` varchar(255) NULL COMMENT '微信-小程序-appid' AFTER `main_user_id`,
-   ADD COLUMN `wx_miniapp_open_id` varchar(255) NULL COMMENT '微信-小程序-openid' AFTER `wx_miniapp_app_id`,
-   ADD COLUMN `wx_miniapp_session_key` varchar(255) NULL COMMENT '微信-小程序-sessionkey' AFTER `wx_miniapp_open_id`,
-   ADD COLUMN `wx_official_account_app_id` varchar(255) NULL COMMENT '微信-公众号-appid' AFTER `wx_miniapp_session_key`,
-   ADD COLUMN `wx_official_account_open_id` varchar(255) NULL COMMENT '微信-公众号-openid' AFTER `wx_official_account_app_id`;
+   ADD COLUMN `wx_miniapp_open_id` varchar(255) NULL COMMENT '微信-小程序-openid' AFTER `relation_ic_user_id`,
+   ADD COLUMN `wx_official_account_open_id` varchar(255) NULL COMMENT '微信-公众号-openid' AFTER `wx_miniapp_open_id`;
 ```
 
 # 增加微信支付回调 (已上线)