diff --git a/xep-0384.xml b/xep-0384.xml
index 709112e9..5b893b1f 100644
--- a/xep-0384.xml
+++ b/xep-0384.xml
@@ -23,6 +23,7 @@
     <spec>XMPP Core</spec>
     <spec>XEP-0060</spec>
     <spec>XEP-0163</spec>
+    <spec>XEP-0420</spec>
   </dependencies>
   <supersedes/>
   <supersededby/>