diff --git a/README.md b/README.md
index c806adebb98009fcdf8a34b4651c51b1f9c40cc8..5b8a294cc70945818c6eb07470a9400d023d2401 100644
--- a/README.md
+++ b/README.md
@@ -74,7 +74,7 @@ a shortcut for test dataset
 ```python
 from csst_common.data_manager import CsstMbiDataManager
 
-CsstMbiDataManager.quickstart(hostname="dandelion", ver_sim="C5.2", dir_l1=".", exposure_id=100)
+CsstMbiDataManager.quickstart(ver_sim="C5.2", dir_l1=".", exposure_id=100)
 ```
 
 ## algorithm description