diff --git a/_data/origin/cors.yml b/_data/origin/cors.yml
index 8e0c0ba85..0f1cf18b1 100644
--- a/_data/origin/cors.yml
+++ b/_data/origin/cors.yml
@@ -51,4 +51,4 @@ clipboard:
   js: https://cdn.jsdelivr.net/npm/clipboard@2.0.11/dist/clipboard.min.js
 
 mathjax:
-  js: https://cdn.jsdelivr.net/npm/mathjax@3.2.2/es5/tex-chtml.js
+  js: https://cdn.jsdelivr.net/npm/mathjax@4/tex-mml-chtml.js
diff --git a/_includes/js-selector.html b/_includes/js-selector.html
index 5a80532f8..cdd60e7dc 100644
--- a/_includes/js-selector.html
+++ b/_includes/js-selector.html
@@ -67,7 +67,6 @@
 {% if page.math %}
   <!-- MathJax -->
   <script src="{{ '/assets/js/data/mathjax.js' | relative_url }}"></script>
-  <script async src="https://cdnjs.cloudflare.com/polyfill/v3/polyfill.min.js?features=es6"></script>
   <script id="MathJax-script" async src="{{ site.data.origin[type].mathjax.js | relative_url }}"></script>
 {% endif %}
 
diff --git a/_sass/base/_base.scss b/_sass/base/_base.scss
index b512a484c..80c84827e 100644
--- a/_sass/base/_base.scss
+++ b/_sass/base/_base.scss
@@ -391,8 +391,9 @@ main {
 
 /* MathJax */
 mjx-container {
-  overflow-y: hidden;
-  min-width: auto !important;
+  a {
+    display: inline-block;
+  }
 }
 
 @media (hover: hover) {