diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bf4ef228c99d549378a70a9b7ad725aa70f93ea7..5c4d25635bd5b9ac553417c0f1d479dda8e799f6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: maven:3.9.9-eclipse-temurin-23-alpine
+image: maven:3.9.9-eclipse-temurin-21-alpine
 
 variables:
   MAVEN_DEPLOY_CLI_OPTS: "--no-transfer-progress -DskipTests"