diff --git a/layouts/partials/header.html b/layouts/partials/header.html
index 21722132f..4bc212a52 100644
--- a/layouts/partials/header.html
+++ b/layouts/partials/header.html
@@ -29,7 +29,7 @@
         {{ if .Site.Params.MathJax | default true }}
         <!-- adds MathJax support -->
         <script type="text/javascript" async
-          src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
+          src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.9/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
         </script>
         {{ end }}
     </head>