diff --git a/index.html b/index.html
index c2d9dbb..e8e32d0 100644
--- a/index.html
+++ b/index.html
@@ -13,10 +13,11 @@
 <load src="/src/parts/modals.html" />
 <script src="https://unpkg.com/lucide@latest"></script>
 <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/katex/dist/katex.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/markdown-it-texmath/texmath.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/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 type="module" src="/src/main.js"></script>
 </body>
 </html>
 
-