diff --git a/src/.vuepress/styles/palette.scss b/src/.vuepress/styles/palette.scss
index 5f359ff..a24cb31 100644
--- a/src/.vuepress/styles/palette.scss
+++ b/src/.vuepress/styles/palette.scss
@@ -1,3 +1,3 @@
 $content-width: 980px;
 $home-page-width: 980px;
-$font-family-heading: '-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", STHeiti, "Microsoft YaHei", SimSun, sans-serif';
+$font-family-heading: '-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", STHeiti, "Microsoft YaHei", sans-serif';