diff --git a/xep-0373.xml b/xep-0373.xml
index 18bfa389..2a76a60f 100644
--- a/xep-0373.xml
+++ b/xep-0373.xml
@@ -46,6 +46,12 @@
     <email>look@my.amazin.horse</email>
     <jid>valodim@stratum0.org</jid>
   </author>
+  <revision>
+    <version>0.3.1</version>
+    <date>2018-05-21</date>
+    <initials>ps</initials>
+    <remark>Fix slightly incorrect reference to RFC 4880</remark>
+  </revision>
   <revision>
     <version>0.3.0</version>
     <date>2018-04-16</date>