diff --git a/xep-0167.xml b/xep-0167.xml
index 8f257638..5023e3c3 100644
--- a/xep-0167.xml
+++ b/xep-0167.xml
@@ -42,6 +42,12 @@
   &seanegan;
   &robmcqueen;
   &diana;
+  <revision>
+    <version>1.2.1</version>
+    <date>2020-09-29</date>
+    <initials>mar-v-in</initials>
+    <remark><p>Add missing required attribute in schema for encryption element</p></remark>
+  </revision>
   <revision>
     <version>1.2.0</version>
     <date>2020-04-22</date>