diff --git a/dev-tools/cluster/Dockerfile b/dev-tools/cluster/Dockerfile
index c33f1dfac88..f3caa3c368e 100644
--- a/dev-tools/cluster/Dockerfile
+++ b/dev-tools/cluster/Dockerfile
@@ -25,7 +25,7 @@
 #       storm-dist/binary/final-package/target
 #
 # or simply `docker compose up --build` from this directory.
-FROM eclipse-temurin:21-jre-jammy
+FROM eclipse-temurin:25-jre-jammy
 
 ARG STORM_VERSION=3.0.0-SNAPSHOT
 
diff --git a/dev-tools/cluster/README.md b/dev-tools/cluster/README.md
index e8840832fe5..4d893d8f70a 100644
--- a/dev-tools/cluster/README.md
+++ b/dev-tools/cluster/README.md
@@ -41,7 +41,7 @@ detailed under [Metrics & reports](#metrics--reports-prometheus--grafana).
 
 | File | Purpose |
 |------|---------|
-| `Dockerfile` | Runtime image `FROM eclipse-temurin:21-jre`, unpacks the built dist into `/opt/storm`. |
+| `Dockerfile` | Runtime image `FROM eclipse-temurin:25-jre`, unpacks the built dist into `/opt/storm`. |
 | `Dockerfile.dockerignore` | Keeps the build context to just the dist tarball. |
 | `storm.yaml` | Cluster config (ZK + Nimbus seeds + slots), bind-mounted into every daemon. |
 | `docker-compose.yml` | dev ZooKeeper, Nimbus, supervisor1, supervisor2, UI, Pushgateway, graphite-exporter, Prometheus, Grafana. |