diff --git a/testcases/index.html b/testcases/index.html
index 1fe7875..d3ff6b8 100644
--- a/testcases/index.html
+++ b/testcases/index.html
@@ -26,7 +26,7 @@
         if (isLocalDevelopment) {
           mathjaxScript = '/mathjax/unpacked/MathJax.js?config=' + mathjaxConfigs;
         } else {
-          mathjaxScript = '//cdnjs.cloudflare.com/ajax/libs/mathjax/2.6.1/MathJax.js?config=' + mathjaxConfigs;
+          mathjaxScript = '//cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=' + mathjaxConfigs;
         }
 
         var script = document.createElement("script");