diff --git a/dev-java/openjdk/metadata.xml b/dev-java/openjdk/metadata.xml
index bb834a6a0f838..543587cc5399a 100644
--- a/dev-java/openjdk/metadata.xml
+++ b/dev-java/openjdk/metadata.xml
@@ -27,5 +27,6 @@
 		<remote-id type="github">openjdk/jdk8u</remote-id>
 		<remote-id type="github">openjdk/jdk11u</remote-id>
 		<remote-id type="github">openjdk/jdk17u</remote-id>
+		<remote-id type="github">openjdk/jdk21u</remote-id>
 	</upstream>
 </pkgmetadata>