diff --git a/tools/debian/etc/systemd/system/openems.service b/tools/debian/etc/systemd/system/openems.service
index cb04992892a..e367e7a22a2 100644
--- a/tools/debian/etc/systemd/system/openems.service
+++ b/tools/debian/etc/systemd/system/openems.service
@@ -7,7 +7,7 @@ User=root
 Group=root
 Type=notify
 WorkingDirectory=/usr/lib/openems
-ExecStart=/usr/lib/jvm/temurin-17-jre-armhf/bin/java \
+ExecStart=/usr/lib/jvm/temurin-21-jre-armhf/bin/java \
     -Dorg.osgi.framework.storage=/tmp/org.osgi.framework.storage \
     -Dosgi.clean=true \
     -Dfelix.cm.dir=/etc/openems.d/ \