diff --git a/README.md b/README.md
index 5e0af6e531acce69275b79f5089bfe3473fac053..7bdf69ccd9acaafe31365a3c21e9f87317e8e61b 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 ## csst_proto 
-[![Documentation Status](https://readthedocs.org/projects/csst/badge/?version=latest)](https://csst.readthedocs.io/en/latest/?badge=latest)
+[![Documentation Status](https://readthedocs.org/projects/csst-proto/badge/?version=latest)](https://csst-proto.readthedocs.io/en/latest/?badge=latest)
  
 CSST L1 pipeline prototype.
 
diff --git a/doc/source/index.rst b/doc/source/index.rst
index fda2ba97ee649415aa0b3054066ad06c0d0e5ad2..868d4b349c30af037a4802ad6643a141f0585716 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -10,8 +10,8 @@ csst_proto
    :description lang=cn: Automate building, versioning, and hosting of your technical documentation continuously on Read the Docs.
 
 
-.. image:: https://readthedocs.org/projects/csst/badge/?version=latest
-    :target: https://csst.readthedocs.io/en/latest/?badge=latest
+.. image:: https://readthedocs.org/projects/csst-proto/badge/?version=latest
+    :target: https://csst-proto.readthedocs.io/en/latest/?badge=latest
     :alt: Documentation Status