diff --git a/_layouts/default.html b/_layouts/default.html
index 1c72013..b098d39 100755
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -79,7 +79,7 @@ <h2 class="title">Quant<span>Econ</span></h2>
               <li{% if page.url==node.url %} class="active" {% endif %}><a href="{{ node.url | relative_url }}">{{
                   node.title }}</a></li>
               {% endfor %}
-              <li><a href="/projects/#filter=lecture">Lectures</a></li>
+              <!-- <li><a href="/projects/#filter=lecture">Lectures</a></li> -->
               <li><a href="https://github.com/QuantEcon" target="_blank">GitHub</a></li>
               <li class="dropdown"><a href="#"><span>Support</span> <i class="bi bi-chevron-down"></i></a>
                 <ul>