diff --git a/docs/index.html b/docs/index.html
index e93e5ee19..640d14813 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -30,7 +30,7 @@
                 <li><a href="#Why">Why choosing <em class="logo">Paradis<span class="logo_eo">eo</span></em>?</a></li>
                 <li><a href="https://gforge.inria.fr/frs/?group_id=145">Downloads</a></li>
                 <li><a href="https://gforge.inria.fr/scm/?group_id=145">Git repository</a></li>
-                <li><a href="http://irc.lc/freenode/paradiseo">Chat with us</a></li>
+                <li><a href="https://app.element.io/#/room/#paradiseo:matrix.org">Chat with us</a></li>
             </ul>
         </div>
 
@@ -236,7 +236,7 @@
     answers is to send an email to <a href='mailto:paradiseo-help@lists.gforge.inria.fr'>paradiseo-help@lists.gforge.inria.fr</a>. You can also <a href='http://lists.gforge.inria.fr/pipermail/paradiseo-help/'>consult the help archives</a>, subscribe to our <a href='http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/paradiseo-users'>(low traffic) mailing-list</a> or <a href='http://lists.gforge.inria.fr/pipermail/paradiseo-users/'>consult its archives</a>.
     </p>
 
-    <p>Alternatively, you can join us on the official chatroom. You can try our <a href="http://irc.lc/freenode/paradiseo">webchat interface</a>, or if you already use IRC, you can directly connect to the <a href="irc://irc.freenode.org/#paradiseo">irc.freenode.org/#paradiseo</a> multi-user chatroom with your favorite client.</p>
+    <p>Alternatively, you can join us on the official chatroom. You can try the <a href="https://app.element.io/#/room/#paradiseo:matrix.org">online webchat app</a>, or if you already use <a href="https://element.io">Element.io</a>, you can directly connect to the <em>#paradiseo:matrix.org</em> multi-user chatroom with your favorite client.</p>
 
     </div>
     </div>