diff --git a/Jenkinsfile b/Jenkinsfile
index 56609f18..9c45c475 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -2,5 +2,6 @@ buildPlugin(
   useContainerAgent: true,
   configurations: [
     [platform: 'linux', jdk: 17],
+    [platform: 'linux',   jdk: '21', jenkins: '2.414'],
     // TODO add Windows containers once we get Windows 2016 agents and DockerRule can handle Windows containers
 ])