diff --git a/k8s/31_deployment_broker.yaml b/k8s/31_deployment_broker.yaml
index 3b538cf..4b951cb 100644
--- a/k8s/31_deployment_broker.yaml
+++ b/k8s/31_deployment_broker.yaml
@@ -17,7 +17,7 @@ spec:
         kubernetes.io/hostname: k3sh0
       containers:
         - name: redis
-          image: docker.io/library/redis:7
+          image: docker.io/library/redis:7@sha256:0a0558e3113e98807c863440c8ccbdeac25d5b946f322043b293882e35ebf524
           volumeMounts:
             - name: data
               mountPath: /data