diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 06b24bc12..d84d24eea 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,6 @@
 # use Eclipse's JDK
 # The ci should always use a unix(-like) OS to work
-image: eclipse-temurin:17
+image: eclipse-temurin:21
 
 # all stages need to be defined here
 # TODO: Make stages depend on what is in versionProperties