diff --git a/xep-0333.xml b/xep-0333.xml
index 3adb80b0..6545d6d4 100644
--- a/xep-0333.xml
+++ b/xep-0333.xml
@@ -10,7 +10,7 @@
   <abstract>This specification describes a solution of marking the last received, displayed and acknowledged message in a chat.</abstract>
   &LEGALNOTICE;
   <number>0333</number>
-  <status>Experimental</status>
+  <status>Deferred</status>
   <lastcall>2017-03-01</lastcall>
   <lastcall>2017-02-22</lastcall>
   <lastcall>2017-02-11</lastcall>