diff --git a/mkdocs.yml b/mkdocs.yml
index 9cfd006..9790c1d 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -123,7 +123,6 @@ extra_css:
 
 extra_javascript:
   - javascripts/mathjax.js
-  - https://polyfill.io/v3/polyfill.min.js?features=es6
   - https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mtml-chtml.js
   - https://cdn.jsdelivr.net/npm/mermaid@11.4.0/dist/mermaid.min.js
   - javascripts/mermaid.js
@@ -230,4 +229,4 @@ nav:
       - Podcasts: resources/podcast.md
 
 # Copyright
-copyright: Copyright © 2025 Mujahed Altahleh
\ No newline at end of file
+copyright: Copyright © 2025 Mujahed Altahleh