diff --git a/docusaurus.config.js b/docusaurus.config.js
index e09d012..342a9e1 100644
--- a/docusaurus.config.js
+++ b/docusaurus.config.js
@@ -55,7 +55,7 @@ const config = {
           // Please change this to your repo.
           // Remove this to remove the "edit this page" links.
           editUrl:
-            'https://github.com/BetterECNU/SharedCourses',
+            'https://github.com/BetterECNU/SharedCourses/tree/main',
         },
         blog: false,
         theme: {