diff --git a/xep-0380.xml b/xep-0380.xml
index 250298f0..2c895c9a 100644
--- a/xep-0380.xml
+++ b/xep-0380.xml
@@ -24,6 +24,18 @@
   <supersededby/>
   <shortname>EME</shortname>
   &linkmauve;
+  <revision>
+    <version>0.4.0</version>
+    <date>2021-11-18</date>
+    <initials>melvo</initials>
+    <remark>
+      <p>Add new OMEMO namespaces:</p>
+      <ul>
+        <li>Add 'urn:xmpp:omemo:1' for OMEMO versions since 0.4.0</li>
+        <li>Add 'urn:xmpp:omemo:2' for OMEMO versions since 0.8.0</li>
+      </ul>
+    </remark>
+  </revision>
   <revision>
     <version>0.3.0</version>
     <date>2019-04-28</date>
@@ -180,6 +192,16 @@
     <tr>
       <td>OMEMO</td>
       <td>eu.siacs.conversations.axolotl</td>
+      <td>https://xmpp.org/extensions/attic/xep-0384-0.3.0.html</td>
+    </tr>
+    <tr>
+      <td>OMEMO 1</td>
+      <td>urn:xmpp:omemo:1</td>
+      <td>https://xmpp.org/extensions/attic/xep-0384-0.4.0.html</td>
+    </tr>
+    <tr>
+      <td>OMEMO 2</td>
+      <td>urn:xmpp:omemo:2</td>
       <td>&xep0384;</td>
     </tr>
   </table>