diff --git a/templates/base.html b/templates/base.html
index d73c29ba..e170d02e 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -25,8 +25,7 @@
     <script src="{% static 'tagulous/lib/select2-3/select2.min.js' %}"></script>
     <script src="{% static 'tagulous/tagulous.js' %}"></script>
     <script src="{% static 'tagulous/adaptor/select2-3.js' %}"></script>
-    <!-- <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/3.1.2/es5/latest.min.js?config=TeX-AMS-MML_HTMLorMML"> </script> -->
-    <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> </script>
+    <script type="text/javascript" async src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> </script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/dexie/3.0.3/dexie.min.js" integrity="sha512-aEtNzq8X5E0ambgeM68H174SOXaANJ6wDqJ0TuVIx4R2J4fRdUA0nLzx0faA1mmViqb+r0VX7cOXkskxyJENUA==" crossorigin="anonymous"></script>
     <!-- <script src="{% static 'tagulous/lib/jquery.js' %}"></script> -->
     <script src="https://cdnjs.cloudflare.com/ajax/libs/html5sortable/0.10.0/html5sortable.min.js" integrity="sha512-tBlVMq89XaEC9iU5LyRjP2Vxs8SmVhEHGbv2Co6SbGa14Wsxy2qZN0jadrN+Xn5AifORaUbvZcG21/ExcNfWDA==" crossorigin="anonymous"></script>