--- a/plugins/mod_mam/mod_mam.lua	Sun Feb 19 23:39:53 2017 +0100
+++ b/plugins/mod_mam/mod_mam.lua	Mon Feb 20 00:32:59 2017 +0100
@@ -9,7 +9,7 @@
 -- XEP-0313: Message Archive Management for Prosody
 --
 
-local xmlns_mam     = "urn:xmpp:mam:1";
+local xmlns_mam     = "urn:xmpp:mam:2";
 local xmlns_delay   = "urn:xmpp:delay";
 local xmlns_forward = "urn:xmpp:forward:0";
 local xmlns_st_id   = "urn:xmpp:sid:0";