diff --git a/material/templates/partials/toc-item.html b/material/templates/partials/toc-item.html
index f505153f5..691bf480d 100644
--- a/material/templates/partials/toc-item.html
+++ b/material/templates/partials/toc-item.html
@@ -8,7 +8,7 @@
     </span>
   </a>
   {% if toc_item.children %}
-    <nav class="md-nav" aria-label="{{ toc_item.title | striptags }}">
+    <nav class="md-nav" aria-label="{{ toc_item.title | striptags | e }}">
       <ul class="md-nav__list">
         {% for toc_item in toc_item.children %}
           {% include "partials/toc-item.html" %}
diff --git a/material/templates/partials/toc.html b/material/templates/partials/toc.html
index aeeb3acbd..da823427f 100644
--- a/material/templates/partials/toc.html
+++ b/material/templates/partials/toc.html
@@ -5,7 +5,7 @@
 {% if config.mdx_configs.toc and config.mdx_configs.toc.title %}
   {% set title = config.mdx_configs.toc.title %}
 {% endif %}
-<nav class="md-nav md-nav--secondary" aria-label="{{ title }}">
+<nav class="md-nav md-nav--secondary" aria-label="{{ title | e }}">
   {% set toc = page.toc %}
   {% set first = toc | first %}
   {% if first and first.level == 1 %}