diff --git a/dynamic/publish.md b/dynamic/publish.md
index a2dd2a2..60c1b10 100644
--- a/dynamic/publish.md
+++ b/dynamic/publish.md
@@ -88,7 +88,7 @@ curl 'http://api.vc.bilibili.com/api/v1/drawImage/upload' \
 | content | str | 动态内容 |
 | up_choose_comment | num | 0 |
 | up_close_comment | num | 0 |
-| extension | obj | 常量见下,未知 |
+| extension | obj | 位置信息 |
 | at_uids | str | 动态中at到的用户的uid,逗号分隔 |
 | ctrl | obj[] | 特殊格式控制(如at别人时的蓝字体和链接) |
 | csrf_token | str | csrf |
@@ -96,7 +96,7 @@ curl 'http://api.vc.bilibili.com/api/v1/drawImage/upload' \
 
 extension参数值:
 ```json
-{"emoji_type":1,"from":{"emoji_type":1},"flag_cfg":{}}
+{"emoji_type":1,"lbs_cfg":{"title":"**市","poi":"156330200","show_title":"**市","type":1,"address":"**市","location":{"lng":显示的经度数值,"lat":显示的纬度数值},"distance":0},"flag_cfg":{},"from_cfg":{"location":{"lat":用户实际纬度数值,"lng":用户实际经度数值}}}
 ```
 
 ctrl单个对象(注意用的时候是数组出现):
@@ -192,4 +192,4 @@ curl 'https://api.vc.bilibili.com/dynamic_svr/v1/dynamic_svr/create' \
     --data-raw 'dynamic_id=0&type=4&rid=0&content=%5B%E7%83%AD%E8%AF%8D%E7%B3%BB%E5%88%97_%E7%A5%9E%E4%BB%99UP%5D%40%E6%9A%AE%E5%85%89%E5%B0%8F%E7%8C%BFwzt%20%40%E7%A4%BE%E4%BC%9A%E6%98%93%E5%A7%90QwQ%20&up_choose_comment=0&up_close_comment=0&extension=%7B%22emoji_type%22%3A1%2C%22from%22%3A%7B%22emoji_type%22%3A1%7D%2C%22flag_cfg%22%3A%7B%7D%7D&at_uids=15858903%2C293793435&ctrl=%5B%7B%22location%22%3A11%2C%22type%22%3A1%2C%22length%22%3A9%2C%22data%22%3A%2215858903%22%7D%2C%7B%22location%22%3A20%2C%22type%22%3A1%2C%22length%22%3A9%2C%22data%22%3A%22293793435%22%7D%5D&csrf_token=de2731532b4ab96bc8536da948932668&csrf=de2731532b4ab96bc8536da948932668'
 ```
 
-</details>
\ No newline at end of file
+</details>