diff --git a/charts/keptn-cert-manager/Chart.yaml b/charts/keptn-cert-manager/Chart.yaml
index 6042415f..45c5af23 100644
--- a/charts/keptn-cert-manager/Chart.yaml
+++ b/charts/keptn-cert-manager/Chart.yaml
@@ -19,8 +19,8 @@ annotations:
   artifacthub.io/operator: 'true'
 kubeVersion: '>= 1.24.0-0'
 type: application
-version: 0.2.5
-appVersion: v2.2.1 # x-release-please-version
+version: 0.2.6
+appVersion: v2.2.2 # x-release-please-version
 dependencies:
   - name: common
     repository: https://charts.lifecycle.keptn.sh
diff --git a/charts/keptn-cert-manager/templates/certificate-operator-rbac.yaml b/charts/keptn-cert-manager/templates/certificate-operator-rbac.yaml
index d5d99c92..1e1e0675 100644
--- a/charts/keptn-cert-manager/templates/certificate-operator-rbac.yaml
+++ b/charts/keptn-cert-manager/templates/certificate-operator-rbac.yaml
@@ -44,15 +44,6 @@ rules:
   - admissionregistration.k8s.io
   resources:
   - mutatingwebhookconfigurations
-  verbs:
-  - get
-  - list
-  - patch
-  - update
-  - watch
-- apiGroups:
-  - admissionregistration.k8s.io
-  resources:
   - validatingwebhookconfigurations
   verbs:
   - get
diff --git a/charts/keptn-cert-manager/values.yaml b/charts/keptn-cert-manager/values.yaml
index 0de385bd..1aa0fc27 100644
--- a/charts/keptn-cert-manager/values.yaml
+++ b/charts/keptn-cert-manager/values.yaml
@@ -72,7 +72,7 @@ image:
 ## @param     image.repository specify repo for manager image
   repository: keptn/certificate-operator
 ## @param     image.tag select tag for manager container
-  tag: v2.2.1 # x-release-please-version
+  tag: v2.2.2 # x-release-please-version
 ## @param   image.imagePullPolicy specify pull policy for the manager image. This overrides global values
   imagePullPolicy: ""
 ## @extra     livenessProbe custom RBAC proxy liveness probe