diff --git a/rebar.config b/rebar.config
index cb30f6003..a9dccaac1 100644
--- a/rebar.config
+++ b/rebar.config
@@ -25,7 +25,7 @@
         {fast_tls, ".*", {git, "https://github.com/processone/fast_tls", {tag, "1.0.22"}}},
         {stringprep, ".*", {git, "https://github.com/processone/stringprep", {tag, "1.0.11"}}},
         {fast_xml, ".*", {git, "https://github.com/processone/fast_xml", {tag, "1.1.30"}}},
-        {xmpp, ".*", {git, "https://github.com/processone/xmpp", "6999333"}},
+        {xmpp, ".*", {git, "https://github.com/processone/xmpp", "6e3feb7"}},
         {fast_yaml, ".*", {git, "https://github.com/processone/fast_yaml", {tag, "1.0.14"}}},
         {jiffy, ".*", {git, "https://github.com/davisp/jiffy", {tag, "0.14.8"}}},
         {p1_oauth2, ".*", {git, "https://github.com/processone/p1_oauth2", {tag, "0.6.3"}}},
diff --git a/src/mod_muc_room.erl b/src/mod_muc_room.erl
index 4f7070741..94c9ae327 100644
--- a/src/mod_muc_room.erl
+++ b/src/mod_muc_room.erl
@@ -3848,6 +3848,7 @@ iq_disco_info_extras(Lang, StateData) ->
     Fs1 = [{description, (StateData#state.config)#config.description},
 	   {occupants, ?DICT:size(StateData#state.nicks)},
 	   {contactjid, get_owners(StateData)},
+	   {changesubject, (StateData#state.config)#config.allow_change_subj},
 	   {lang, (StateData#state.config)#config.lang}],
     Fs2 = case (StateData#state.config)#config.pubsub of
 	      Node when is_binary(Node), Node /= <<"">> ->