diff --git a/README.md b/README.md
index 7eca56d..32b47db 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,18 @@ JerryC:  https://jerryc.me/
 
 Based on [hexo-theme-melody](https://github.com/Molunerfinn/hexo-theme-melody) theme.
 
+> If you update to hexo 4.2.0，it will be something's wrong
+>
+> ```
+> Error: Cannot find module 'cheerio'
+> ```
+>
+> please install cheerio
+>
+> ```
+> npm install cheerio --save
+> ```
+
 ## Installation
 
 Stable branch:
diff --git a/README_CN.md b/README_CN.md
index 9777fed..a858781 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -9,9 +9,20 @@ Demo:  https://demo.jerryc.me/
 
 JerryC:  https://jerryc.me/
 
-
 一款基於[hexo-theme-melody](https://github.com/Molunerfinn/hexo-theme-melody)修改的主題
 
+> 如果升級到hexo 4.2.0 ，會出現報錯
+>
+> ```
+> Error: Cannot find module 'cheerio'
+> ```
+>
+> 請在博客根目錄安裝cheerio
+>
+> ```
+> npm install cheerio --save
+> ```
+
 ## 安裝
 
 在你的博客根目錄裏
diff --git a/layout/includes/head.pug b/layout/includes/head.pug
index 5cb6c38..de8c8f4 100644
--- a/layout/includes/head.pug
+++ b/layout/includes/head.pug
@@ -63,8 +63,8 @@ if theme.algolia_search.enable
 
 if (theme.gitalk && theme.gitalk.enable)
   link(rel="stylesheet" type="text/css" href=url_for(theme.CDN.gitalk_css))
-  script(src=url_for(theme.CDN.gitalk) defer)
-  script(src=url_for(theme.CDN.blueimp_md5) defer)
+  script(src=url_for(theme.CDN.gitalk))
+  script(src=url_for(theme.CDN.blueimp_md5))
 
 //- google_adsense
 include ./head/google_adsense.pug