--- a/doc/doap.xml	Tue Mar 02 22:42:04 2021 +0100
+++ b/doc/doap.xml	Tue Mar 02 22:57:20 2021 +0100
@@ -55,6 +55,7 @@
     <implements rdf:resource="https://www.rfc-editor.org/info/rfc7301"/>
     <implements rdf:resource="https://www.rfc-editor.org/info/rfc7395"/>
     <implements rdf:resource="https://www.rfc-editor.org/info/rfc7590"/>
+    <implements rdf:resource="https://www.rfc-editor.org/info/rfc7673"/>
     <implements rdf:resource="https://datatracker.ietf.org/doc/draft-cridland-xmpp-session/">
       <!-- since=0.6.0 note=Added in hg:0bbbc9042361 -->
     </implements>