diff --git a/cms/static/coffee/spec/main.coffee b/cms/static/coffee/spec/main.coffee
index 9c5de88063..edc8b3ac65 100644
--- a/cms/static/coffee/spec/main.coffee
+++ b/cms/static/coffee/spec/main.coffee
@@ -47,7 +47,7 @@ requirejs.config({
         "URI": "xmodule_js/common_static/js/vendor/URI.min",
         "mock-ajax": "xmodule_js/common_static/js/vendor/mock-ajax",
 
-        "mathjax": "//cdn.mathjax.org/mathjax/2.2-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured",
+        "mathjax": "//cdn.mathjax.org/mathjax/2.4-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured",
         "youtube": "//www.youtube.com/player_api?noext",
         "tender": "//api.tenderapp.com/tender_widget",
 
diff --git a/cms/static/coffee/spec/main_squire.coffee b/cms/static/coffee/spec/main_squire.coffee
index db206deab8..7698e8b34b 100644
--- a/cms/static/coffee/spec/main_squire.coffee
+++ b/cms/static/coffee/spec/main_squire.coffee
@@ -41,7 +41,7 @@ requirejs.config({
         "domReady": "xmodule_js/common_static/js/vendor/domReady",
         "URI": "xmodule_js/common_static/js/vendor/URI.min",
 
-        "mathjax": "//cdn.mathjax.org/mathjax/2.2-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured",
+        "mathjax": "//cdn.mathjax.org/mathjax/2.4-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured",
         "youtube": "//www.youtube.com/player_api?noext",
         "tender": "//api.tenderapp.com/tender_widget.js"
 
diff --git a/cms/static/require-config.js b/cms/static/require-config.js
index 1a4cb9d44a..dfd996072e 100644
--- a/cms/static/require-config.js
+++ b/cms/static/require-config.js
@@ -74,7 +74,7 @@ require.config({
             // so that require doesn't fall over
             "js/src/tender_fallback"
         ],
-        "mathjax": "//cdn.mathjax.org/mathjax/2.2-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured",
+        "mathjax": "//cdn.mathjax.org/mathjax/2.4-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured",
         "youtube": [
             // youtube URL does not end in ".js". We add "?noext" to the path so
             // that require.js adds the ".js" to the query component of the URL,
diff --git a/common/templates/mathjax_include.html b/common/templates/mathjax_include.html
index fd0f4d792f..753b2319a5 100644
--- a/common/templates/mathjax_include.html
+++ b/common/templates/mathjax_include.html
@@ -33,4 +33,4 @@
 <!-- This must appear after all mathjax-config blocks, so it is after the imports from the other templates.
      It can't be run through static.url because MathJax uses crazy url introspection to do lazy loading of
      MathJax extension libraries -->
-<script type="text/javascript" src="https://cdn.mathjax.org/mathjax/2.2-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full"></script>
+<script type="text/javascript" src="https://cdn.mathjax.org/mathjax/2.4-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full"></script>
diff --git a/lms/static/js/spec/main.js b/lms/static/js/spec/main.js
index 0bf09b003a..d408a7988a 100644
--- a/lms/static/js/spec/main.js
+++ b/lms/static/js/spec/main.js
@@ -43,7 +43,7 @@
             'jasmine.async': 'xmodule_js/common_static/js/vendor/jasmine.async',
             'draggabilly': 'xmodule_js/common_static/js/vendor/draggabilly.pkgd',
             'domReady': 'xmodule_js/common_static/js/vendor/domReady',
-            'mathjax': '//cdn.mathjax.org/mathjax/2.2-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured',
+            'mathjax': '//cdn.mathjax.org/mathjax/2.4-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured',
             'youtube': '//www.youtube.com/player_api?noext',
             'tender': '//api.tenderapp.com/tender_widget',
             'coffee/src/ajax_prefix': 'xmodule_js/common_static/coffee/src/ajax_prefix',