diff --git a/layouts/partials/script.html b/layouts/partials/script.html
index b95a3bb..d0a650e 100644
--- a/layouts/partials/script.html
+++ b/layouts/partials/script.html
@@ -1,10 +1,10 @@
 <script type="application/javascript" src="{{ "js/github-style.js" | absURL }}"></script>
 {{ if or .Params.math .Site.Params.math }}
-<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.css"
+<link rel="stylesheet" href="https://fastly.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.css"
   integrity="sha384-zB1R0rpPzHqg7Kpt0Aljp8JPLqbXI3bhnPWROx27a9N0Ll6ZP/+DiW/UqRcLbRjq" crossorigin="anonymous">
-<script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.js"
+<script defer src="https://fastly.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.js"
   integrity="sha384-y23I5Q6l+B6vatafAwxRu/0oK/79VlbSz7Q9aiSZUvyWYIYsd+qj+o24G5ZU2zJz" crossorigin="anonymous"></script>
-<script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/contrib/auto-render.min.js"
+<script defer src="https://fastly.jsdelivr.net/npm/katex@0.11.1/dist/contrib/auto-render.min.js"
   integrity="sha384-kWPLUVMOks5AQFrykwIup5lo0m3iMkkHrD0uJ4H5cjeGihAutqP0yW0J6dpFiVkI" crossorigin="anonymous"
   onload="renderMathInElement(document.body);"></script>
 {{ end }}