diff --git a/classes/2021-fall-6810/6810-engineering-interactive-technologies.html b/classes/2021-fall-6810/6810-engineering-interactive-technologies.html
index d964f59b..cb471670 100644
--- a/classes/2021-fall-6810/6810-engineering-interactive-technologies.html
+++ b/classes/2021-fall-6810/6810-engineering-interactive-technologies.html
@@ -48,7 +48,7 @@
 
       <section class="col-md-8 pull-right main-content">
 
-        <h3 class="headline" style="padding-bottom:10px;padding-top:40px">6.810<br> Engineering Interactive Technologies (fall 2021)<br> <span style="color:red">(6.810 will not be offered in fall 2023)</span></h3>
+        <h3 class="headline" style="padding-bottom:10px;padding-top:40px">6.810<br> Engineering Interactive Technologies (fall 2021)<br> <span style="color:red">(6.810 will not be offered in fall 2024)</span></h3>
         <!-- <span style="color:red">not offered in fall 2019 (sabbatical)</span><br><br> -->
 
 <img src="../../images/classes/engineering-interactive-technologies.jpg" width="107px">
diff --git a/header.html b/header.html
index de28568d..910983af 100644
--- a/header.html
+++ b/header.html
@@ -46,9 +46,9 @@
 						<li>
 							<a class="page-scroll" href="https://hcie.csail.mit.edu/fabpub/" target="_blank">FabPub</a>
 						</li>
-						<li>
+<!-- 						<li>
 							<a class="page-scroll" href="http://hci.csail.mit.edu/hci-seminar.html" target="_blank">HCI Seminar</a>
-						</li>
+						</li> -->
 						<li>
 							<a class="page-scroll" href="http://hcie.csail.mit.edu/contact.html">Contact Us</a>
 						</li>