diff --git a/README.md b/README.md
index aed373c9603307c3bddd511cc45de92fabdf830a..c022ed20135ea0b2eb09808cae45c93d6aaf0584 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# csst_ifs_common
+# csst_ifs_sim
 
 
 
@@ -15,7 +15,7 @@ Already a pro? Just edit this README.md and make it your own. Want to make it ea
 
 ```
 cd existing_repo
-git remote add origin https://csst-tb.bao.ac.cn/code/csst-l1/ifs/csst_ifs_common.git
+git remote add origin https://csst-tb.bao.ac.cn/code/csst-sims/csst_ifs_sim.git
 git branch -M main
 git push -uf origin main
 ```