diff --git a/cms/djangoapps/pipeline_js/js/xmodule.js b/cms/djangoapps/pipeline_js/js/xmodule.js
index f41886a9de..a975972823 100644
--- a/cms/djangoapps/pipeline_js/js/xmodule.js
+++ b/cms/djangoapps/pipeline_js/js/xmodule.js
@@ -19,7 +19,7 @@ define(
 
         $script(
             'https://cdn.jsdelivr.net/npm/mathjax@2.7.5/MathJax.js' +
-            '?config=TeX-MML-AM_HTMLorMML&delayStartupUntil=configured',
+            '?config=TeX-MML-AM_CHTML&delayStartupUntil=configured',
             'mathjax',
             function() {
                 window.MathJax.Hub.Config({
diff --git a/cms/static/cms/js/require-config.js b/cms/static/cms/js/require-config.js
index ea44dc7c3f..1ac2c5a614 100644
--- a/cms/static/cms/js/require-config.js
+++ b/cms/static/cms/js/require-config.js
@@ -137,7 +137,7 @@
             'jquery_extend_patch': 'js/src/jquery_extend_patch',
 
             // externally hosted files
-            mathjax: 'https://cdn.jsdelivr.net/npm/mathjax@2.7.5/MathJax.js?config=TeX-MML-AM_HTMLorMML&delayStartupUntil=configured',  // eslint-disable-line max-len
+            mathjax: 'https://cdn.jsdelivr.net/npm/mathjax@2.7.5/MathJax.js?config=TeX-MML-AM_CHTML&delayStartupUntil=configured',  // eslint-disable-line max-len
             '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/cms/static/cms/js/spec/main.js b/cms/static/cms/js/spec/main.js
index 079d2cfda6..c8883aa636 100644
--- a/cms/static/cms/js/spec/main.js
+++ b/cms/static/cms/js/spec/main.js
@@ -69,7 +69,7 @@
             'domReady': 'xmodule_js/common_static/js/vendor/domReady',
             'URI': 'xmodule_js/common_static/js/vendor/URI.min',
             'mock-ajax': 'xmodule_js/common_static/js/vendor/mock-ajax',
-            mathjax: 'https://cdn.jsdelivr.net/npm/mathjax@2.7.5/MathJax.js?config=TeX-MML-AM_HTMLorMML&delayStartupUntil=configured',   // eslint-disable-line max-len
+            mathjax: 'https://cdn.jsdelivr.net/npm/mathjax@2.7.5/MathJax.js?config=TeX-MML-AM_CHTML&delayStartupUntil=configured',   // eslint-disable-line max-len
             'youtube': '//www.youtube.com/player_api?noext',
             'js/src/ajax_prefix': 'xmodule_js/common_static/js/src/ajax_prefix',
             'js/spec/test_utils': 'js/spec/test_utils'
diff --git a/cms/static/cms/js/spec/main_squire.js b/cms/static/cms/js/spec/main_squire.js
index 97a1b80b9a..1ec74434d6 100644
--- a/cms/static/cms/js/spec/main_squire.js
+++ b/cms/static/cms/js/spec/main_squire.js
@@ -48,7 +48,7 @@
             'draggabilly': 'xmodule_js/common_static/js/vendor/draggabilly',
             'domReady': 'xmodule_js/common_static/js/vendor/domReady',
             'URI': 'xmodule_js/common_static/js/vendor/URI.min',
-            mathjax: 'https://cdn.jsdelivr.net/npm/mathjax@2.7.5/MathJax.js?config=TeX-MML-AM_HTMLorMML&delayStartupUntil=configured',   // eslint-disable-line max-len
+            mathjax: 'https://cdn.jsdelivr.net/npm/mathjax@2.7.5/MathJax.js?config=TeX-MML-AM_CHTML&delayStartupUntil=configured',   // eslint-disable-line max-len
             'youtube': '//www.youtube.com/player_api?noext',
             'js/src/ajax_prefix': 'xmodule_js/common_static/js/src/ajax_prefix'
         },
diff --git a/common/templates/mathjax_include.html b/common/templates/mathjax_include.html
index 61181ee433..285c96c691 100644
--- a/common/templates/mathjax_include.html
+++ b/common/templates/mathjax_include.html
@@ -89,5 +89,5 @@
 <!-- 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.jsdelivr.net/npm/mathjax@2.7.5/MathJax.js?config=TeX-MML-AM_HTMLorMML"></script>
+<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/mathjax@2.7.5/MathJax.js?config=TeX-MML-AM_CHTML"></script>
 %endif