diff --git a/xep-0115.xml b/xep-0115.xml
index 8d0c6882..1f7348ca 100644
--- a/xep-0115.xml
+++ b/xep-0115.xml
@@ -34,6 +34,12 @@
       <email>jajcus@jajcus.net</email>
       <jid>jajcus@jabber.bnet.pl</jid>
     </author>
+    <revision>
+      <version>1.6.0</version>
+      <date>2022-03-08</date>
+      <initials>ssw</initials>
+      <remark><p>Mention preimage attacks explicitly</p></remark>
+    </revision>
     <revision>
       <version>1.5.2</version>
       <date>2020-05-05</date>