diff --git a/_pages/teaching.md b/_pages/teaching.md
index b24db7f5..bc5ef2d9 100644
--- a/_pages/teaching.md
+++ b/_pages/teaching.md
@@ -3,7 +3,7 @@ layout: page
 permalink: /teaching/
 title: teaching
 nav: true
-nav_order: 6
+nav_order: 3
 ---
 
 - 非参数统计(Nonparametric statistics), undergraduate course, Fall semester, 2020-2023