diff --git a/_data/external_assets.yml b/_data/external_assets.yml
index 9509b54b3374f3a0c52753ef8f0530d495ecccfe..3a9825f2ee8dee12837ed9869e46006e755c14a4 100644
--- a/_data/external_assets.yml
+++ b/_data/external_assets.yml
@@ -26,7 +26,7 @@ fontawesome:
     integrity: "sha384-XdYbMnZ/QjLh6iI4ogqCTaIjrFk87ip+ekIjefZch0Y+PvJ8CDYtEs1ipDmPorQ+"
 
 mathjax:
-  uri: "https://cdn.mathjax.org/mathjax/"
+  uri: "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/"
   version: "latest"
   js:
     path: "/MathJax.js?config=TeX-AMS-MML_HTMLorMML"