diff --git a/.vitepress/config.mts b/.vitepress/config.mts
index 9911f0e..51af370 100644
--- a/.vitepress/config.mts
+++ b/.vitepress/config.mts
@@ -25,6 +25,8 @@ export interface ThemeConfig {
   repo: string
   owner: string
   admin: string[]
+
+  outline: [2, 3],
 }
 
 export default defineConfigWithTheme<ThemeConfig>({