diff --git a/index.html b/index.html
index e3f057e..92b6724 100644
--- a/index.html
+++ b/index.html
@@ -17,8 +17,7 @@
       // 开启侧边栏
       loadSidebar: true,
       auto2top: true,
-      sidebarDisplayLevel: 2,
-      subMaxLevel: 2,
+      subMaxLevel: 4,
       alias: {
           '/.*/_sidebar.md': '/_sidebar.md'
       },