diff --git a/app/com/gitpitch/views/frags/SlideshowReveal.scala.html b/app/com/gitpitch/views/frags/SlideshowReveal.scala.html
index 0bf07d3..a7c6df6 100644
--- a/app/com/gitpitch/views/frags/SlideshowReveal.scala.html
+++ b/app/com/gitpitch/views/frags/SlideshowReveal.scala.html
@@ -19,7 +19,7 @@
                     @if(offline) {
                     mathjax: '@deps.revealjs(offline, ssm.fetchRevealVersionOverride())/plugin/math/MathJax.js',
                     } else {
-                    mathjax: 'https://cdn.mathjax.org/mathjax/latest/MathJax.js',
+                    mathjax: 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js',
                     }
                     config: '@ssm.fetchMathConfig()'
                 },