diff --git a/stable/prometheus-operator/Chart.yaml b/stable/prometheus-operator/Chart.yaml
index 65f818b842f5..4485001dfdb8 100644
--- a/stable/prometheus-operator/Chart.yaml
+++ b/stable/prometheus-operator/Chart.yaml
@@ -12,7 +12,7 @@ sources:
   - https://github.com/coreos/kube-prometheus
   - https://github.com/coreos/prometheus-operator
   - https://coreos.com/operators/prometheus
-version: 8.9.0
+version: 8.9.1
 appVersion: 0.36.0
 tillerVersion: ">=2.12.0"
 home: https://github.com/coreos/prometheus-operator