diff --git a/charts/argo-rollouts/templates/controller/clusterrole.yaml b/charts/argo-rollouts/templates/controller/clusterrole.yaml
index 70c3bdf8..acaf2b03 100644
--- a/charts/argo-rollouts/templates/controller/clusterrole.yaml
+++ b/charts/argo-rollouts/templates/controller/clusterrole.yaml
@@ -67,6 +67,8 @@ rules:
   - get
   - list
   - watch
+  - update
+  - patch
 # services patch needed to update selector of canary/stable/active/preview services
 # services create needed to create and delete services for experiments
 - apiGroups: