diff --git a/cluster-service/deploy/helm/templates/deployment.yaml b/cluster-service/deploy/helm/templates/deployment.yaml
index faa913601..cfde0d7cf 100644
--- a/cluster-service/deploy/helm/templates/deployment.yaml
+++ b/cluster-service/deploy/helm/templates/deployment.yaml
@@ -100,7 +100,7 @@ spec:
         - --batch-processes={{ .Values.batchProcesses }}
       containers:
       - name: service
-        image: '{{ .Values.imageRegistry }}/{{ .Values.imageRepository }}:{{ .Values.imageTag }}'
+        image: '{{ .Values.imageRegistry }}/{{ .Values.imageRepository }}@{{ .Values.imageDigest }}'
         imagePullPolicy: IfNotPresent
         volumeMounts:
         - name: service