diff --git a/_includes/head.html b/_includes/head.html
index db2d185..44d8e4a 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -151,12 +151,7 @@
 
       <!-- for mathjax support -->
       {% if page.usemathjax %}
-      <script type="text/x-mathjax-config">
-        MathJax.Hub.Config({
-        TeX: { equationNumbers: { autoNumber: "AMS" } }
-        });
-      </script>
-      <script type="text/javascript" async src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
+      <script type="text/javascript" id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
     {% endif %}
 
 </head>