diff --git a/keyserver/src/responders/thread-responders.js b/keyserver/src/responders/thread-responders.js
--- a/keyserver/src/responders/thread-responders.js
+++ b/keyserver/src/responders/thread-responders.js
@@ -150,6 +150,8 @@
       threadTypes.COMMUNITY_SECRET_SUBTHREAD,
       threadTypes.PERSONAL,
       threadTypes.LOCAL,
+      threadTypes.COMMUNITY_ROOT,
+      threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT,
     ]),
     ...threadRequestValidationShape,
   }),