diff --git a/docs/case/case3.md b/docs/case/case3.md
index f3445246..6d0a10d2 100644
--- a/docs/case/case3.md
+++ b/docs/case/case3.md
@@ -3,7 +3,7 @@
 + [tech-fever](https://github.com/tech-fever)
 
 项目地址：[nezha_telegram_bot](https://github.com/tech-fever/nezha_telegram_bot)
-
+镜像备份（非实时更新）：[nezha_telegram_bot](https://github.com/nezhahq/nezha_telegram_bot)  
 
 ## 项目特色
 开源Telegram机器人项目，可以基于API实时查询哪吒面板的服务器信息。