diff --git a/src/.vuepress/config.js b/src/.vuepress/config.js
index 06b1d589e8..929d40afc3 100644
--- a/src/.vuepress/config.js
+++ b/src/.vuepress/config.js
@@ -41,15 +41,6 @@ const sidebar = {
         '/guide/transitions-state'
       ]
     },
-    {
-      title: 'Internals',
-      collapsable: false,
-      children: [
-        '/guide/reactivity',
-        '/guide/optimizations',
-        '/guide/change-detection'
-      ]
-    },
     {
       title: 'Reusability & Composition',
       collapsable: false,