diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index dbab00d258c59d292362448046d8951377e8eeb0..a309194642e7c5d24a1d7ced2cd30f9532c3ce82 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -31,6 +31,10 @@ tests:jdk-17:
   extends: tests
   image: eclipse-temurin:17
 
+tests:jdk-21:
+  extends: tests
+  image: eclipse-temurin:21
+
 publish:
   stage: deploy
   script: