diff --git a/layouts/default.html b/layouts/default.html
index 6b5ed74..41b10d5 100644
--- a/layouts/default.html
+++ b/layouts/default.html
@@ -12,7 +12,7 @@
       MathJax.Hub.Config({tex2jax: {inlineMath: [['«', '»']]}});
       MathJax.Hub.config.tex2jax.skipTags = ["script", "noscript", "style", "textarea", "annotation", "annotation-xml"];
     </script>
-    <script type="text/javascript" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML" async></script>
+    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.5.3/config/TeX-AMS_HTML.js" async></script>
     <script src="/js/main.js" type="text/javascript"></script>
     <script>
       (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){