Refresh invite link for community managed Slack channel.
diff --git a/src/pages/html/mailing_lists.hbs b/src/pages/html/mailing_lists.hbs
index 7ebf36c..4232757 100644
--- a/src/pages/html/mailing_lists.hbs
+++ b/src/pages/html/mailing_lists.hbs
@@ -121,7 +121,7 @@
         <ul>
             <li>
                 Apache NiFi Slack Workspace: <a href="https://apachenifi.slack.com/">https://apachenifi.slack.com/</a> <br />
-                New users can join the workspace using the following <a href="https://join.slack.com/t/apachenifi/shared_invite/enQtNDI2NDMyMTY3MTA5LWJmZDI3MmM1ZmYyODQwZDYwM2MyMDY5ZjkyMDkxY2JmOGMyNmEzYTE0MTRkZTYwYzZlYTJkY2JhZTYyMzcyZGI">invite link</a>.
+                New users can join the workspace using the following <a href="https://join.slack.com/t/apachenifi/shared_invite/enQtNDI2NDMyMTY3MTA5LTQ0YmQwMjljZDQ4NjkzODI0ZWU1YmU0YmU0YjJiNjVjMjhmMWQwZjY0Njk0NDY1OTlkMjM5NmNiODg4MGFmYWU">invite link</a>.
             </li>
             <li>
                 IRC:  #nifi on <a href="http://webchat.freenode.net/?channels=#nifi">irc.freenode.net</a>