diff --git a/src/.vuepress/theme/styles/index.styl b/src/.vuepress/theme/styles/index.styl
index a35b13f7c0..f23c9deebf 100644
--- a/src/.vuepress/theme/styles/index.styl
+++ b/src/.vuepress/theme/styles/index.styl
@@ -115,7 +115,7 @@ ul, ol
   padding-left 1.2em
 
 strong
-  font-weight 500
+  font-weight 600
 
 h1, h2, h3, h4, h5, h6
   font-weight 500