diff --git a/docs/en_US/case/case3.md b/docs/en_US/case/case3.md
index f141b9b5..eb619b86 100644
--- a/docs/en_US/case/case3.md
+++ b/docs/en_US/case/case3.md
@@ -4,6 +4,7 @@ Contributor:
 
 GitHub project: [nezha_telegram_bot](https://github.com/tech-fever/nezha_telegram_bot)（English is already supported）  
 
+Mirror backup, non-real-time update : [nezha_telegram_bot](https://github.com/nezhahq/nezha_telegram_bot)（English is already supported）  
 
 ## Features