diff --git a/docs/sphinx/source/design-philosophy.rst b/docs/sphinx/source/design-philosophy.rst
index 277df6f9c..365cd2c2e 100644
--- a/docs/sphinx/source/design-philosophy.rst
+++ b/docs/sphinx/source/design-philosophy.rst
@@ -163,5 +163,5 @@ Finally, we expect to see more interesting discussions about the **beauty** of B
 **new/missed** BBO, we provide a *unified* API interface to help freely add them if they satisfy the above design
 philosophy well. See the `development guide <https://pypop.readthedocs.io/en/latest/development-guide.html>`_ for details.
 
-.. image:: https://visitor-badge.laobi.icu/badge?page_id=Evolutionary-Intelligence.pypop-design-philosophy
-   :target: https://visitor-badge.laobi.icu/badge?page_id=Evolutionary-Intelligence.pypop-design-philosophy
+.. image:: https://visitor-badge.laobi.icu/badge?page_id=Evolutionary-Intelligence.pypop
+   :target: https://visitor-badge.laobi.icu/badge?page_id=Evolutionary-Intelligence.pypop