diff --git a/index.html b/index.html
index a1d1b56..f258920 100644
--- a/index.html
+++ b/index.html
@@ -15,7 +15,8 @@
 <script src="https://cdn.jsdelivr.net/npm/markdown-it@14.1.0/dist/markdown-it.min.js"></script>
 <script src="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.9.0/build/highlight.min.js"></script>
 <script src="https://cdn.jsdelivr.net/npm/localforage@1.10.0/dist/localforage.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/katex@0.16.21/dist/katex.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/markdown-it-texmath@1.0.0/texmath.min.js"></script>
 <script type="module" src="/src/main.js"></script>
 </body>
 </html>
-