diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 765c0595c19faba34857e51eb388ac68fb50b3c1..faff8b0b12d25b72327d4d3af7ff9f87e196a74b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,6 +4,9 @@ stages:
   - test
   - check_reproducibility
 
+variables:
+  JAVA_HOME: /usr/lib/jvm/java-17-openjdk-amd64
+
 workflow:
   # when to create a CI pipeline
   rules: