diff --git a/layout/_partial/mathjax.ejs b/layout/_partial/mathjax.ejs
index 3cc9a10..da8160d 100644
--- a/layout/_partial/mathjax.ejs
+++ b/layout/_partial/mathjax.ejs
@@ -14,5 +14,5 @@
         }
     });
 </script>
-<script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
+<script type="text/javascript" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
 </script>
\ No newline at end of file