diff --git a/prometheus/Prometheus-operator-helmrelease.yaml b/prometheus/Prometheus-operator-helmrelease.yaml
index e1d9f96..74f82d5 100644
--- a/prometheus/Prometheus-operator-helmrelease.yaml
+++ b/prometheus/Prometheus-operator-helmrelease.yaml
@@ -9,6 +9,7 @@ spec:
   chart:
     repository: https://kubernetes-charts.storage.googleapis.com/
     name: prometheus-operator
+    version: 8.16.1
   values:
     ## Configuration for alertmanager
     ## ref: https://prometheus.io/docs/alerting/alertmanager/