diff --git a/README.md b/README.md
index 5a97903..cb9767b 100644
--- a/README.md
+++ b/README.md
@@ -228,6 +228,7 @@ baidu_analytics: ''
 mathjax: true
 
 # Katex Support
+# note: need change the hexo-renderer，npm un hexo-renderer-marked -S && npm i hexo-renderer-markdown-it-katex -S
 katex:
   enable: false # true
   allpost: true
diff --git a/_config.yml b/_config.yml
index b137eb5..62cf3a4 100644
--- a/_config.yml
+++ b/_config.yml
@@ -169,6 +169,7 @@ baidu_analytics: ""
 mathjax: false
 
 # Katex数学公式(allpost设置为false时只有头部设置math:true的文章才开启)
+# 需要更换hexo渲染器，npm un hexo-renderer-marked -S && npm i hexo-renderer-markdown-it-katex -S
 katex:
   enable: false # true
   allpost: true