diff --git a/stable/prometheus-operator/Chart.yaml b/stable/prometheus-operator/Chart.yaml
index a753294e31..561fea2afc 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: 8.13.5
+version: 8.13.6
 appVersion: 0.38.1
 tillerVersion: ">=2.12.0"
 home: https://github.com/coreos/prometheus-operator
diff --git a/stable/prometheus-operator/crds/crd-thanosrulers.yaml b/stable/prometheus-operator/crds/crd-thanosrulers.yaml
index 96e34608f9..e7b935a998 100644
--- a/stable/prometheus-operator/crds/crd-thanosrulers.yaml
+++ b/stable/prometheus-operator/crds/crd-thanosrulers.yaml
@@ -4,7 +4,7 @@ kind: CustomResourceDefinition
 metadata:
   annotations:
     controller-gen.kubebuilder.io/version: v0.2.4
-    helm.sh/hook: crd-instal
+    helm.sh/hook: crd-install
   creationTimestamp: null
   name: thanosrulers.monitoring.coreos.com
 spec: