diff --git a/steamwarci.yml b/steamwarci.yml
index 259e377a..28500beb 100644
--- a/steamwarci.yml
+++ b/steamwarci.yml
@@ -1,7 +1,7 @@
 setup: []
 
 build:
-  - "JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64 ./gradlew build"
+  - "JAVA_HOME=/usr/lib/jvm/java-21-openj9-amd64 ./gradlew build"
   - "./gradlew --stop"
 
 artifacts: {}
\ No newline at end of file