diff --git a/index.html b/index.html
index c4baf2a..86ad8f3 100644
--- a/index.html
+++ b/index.html
@@ -15,7 +15,7 @@
       name: '',
       repo: '',
       loadSidebar: true,
-      subMaxLevel: 2,
+      subMaxLevel: 3,
       alias: {
         '/*/_sidebar.md': '/_sidebar.md'
       },