diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a8ab126b65957c1b838edb82a77ced9439fe55bf..ba7393d2a95bf00b9f71109473569b34ae69df81 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -25,6 +25,10 @@ tests:jdk-17:
   extends: .tests
   image: eclipse-temurin:17
 
+tests:jdk-21:
+  extends: .tests
+  image: eclipse-temurin:21
+
 publish:
   stage: deploy
   before_script: