diff --git a/README.rst b/README.rst
index 6c8951fd4..1c7a8d6ee 100644
--- a/README.rst
+++ b/README.rst
@@ -72,7 +72,7 @@ You can find the full Tahoe-LAFS documentation at our `documentation site <http:
 
 Get involved with the Tahoe-LAFS community:
 
--  Chat with Tahoe-LAFS developers at #tahoe-lafs chat on irc.freenode.net or `Slack <https://join.slack.com/t/tahoe-lafs/shared_invite/zt-jqfj12r5-ZZ5z3RvHnubKVADpP~JINQ>`__.
+-  Chat with Tahoe-LAFS developers at ``#tahoe-lafs`` channel on `libera.chat <https://libera.chat/>`__ IRC network or `Slack <https://join.slack.com/t/tahoe-lafs/shared_invite/zt-jqfj12r5-ZZ5z3RvHnubKVADpP~JINQ>`__.
 
 -  Join our `weekly conference calls <https://www.tahoe-lafs.org/trac/tahoe-lafs/wiki/WeeklyMeeting>`__ with core developers and interested community members.
 
diff --git a/docs/running.rst b/docs/running.rst
index 82b0443f9..898afa10b 100644
--- a/docs/running.rst
+++ b/docs/running.rst
@@ -235,7 +235,7 @@ Socialize
 =========
 
 You can chat with other users of and hackers of this software on the
-#tahoe-lafs IRC channel at ``irc.freenode.net``, or on the `tahoe-dev mailing
+#tahoe-lafs IRC channel at ``irc.libera.chat``, or on the `tahoe-dev mailing
 list`_.
 
 .. _tahoe-dev mailing list: https://tahoe-lafs.org/cgi-bin/mailman/listinfo/tahoe-dev
diff --git a/newsfragments/3721.documentation b/newsfragments/3721.documentation
new file mode 100644
index 000000000..36ae33236
--- /dev/null
+++ b/newsfragments/3721.documentation
@@ -0,0 +1 @@
+Our IRC channel, #tahoe-lafs, has been moved to irc.libera.chat.