diff --git a/charts/manager/templates/deployment-controller.yaml b/charts/manager/templates/deployment-controller.yaml
index f28c68778..6e1f7ca96 100644
--- a/charts/manager/templates/deployment-controller.yaml
+++ b/charts/manager/templates/deployment-controller.yaml
@@ -63,9 +63,6 @@ spec:
             periodSeconds: 20
           name: manager
           ports:
-            - containerPort: 9443
-              name: webhook-server
-              protocol: TCP
             - containerPort: 8080
               name: metrics
             - containerPort: 8081
@@ -77,16 +74,7 @@ spec:
             initialDelaySeconds: 5
             periodSeconds: 10
           securityContext: {{- toYaml .Values.controllerManager.containerSecurityContext | nindent 10 }}
-          volumeMounts:
-            - mountPath: /tmp/k8s-webhook-server/serving-certs
-              name: cert
-              readOnly: true
       securityContext:
         runAsNonRoot: true
       serviceAccountName: {{ include "manager.fullname" . }}-controller-manager
       terminationGracePeriodSeconds: 10
-      volumes:
-        - name: cert
-          secret:
-            defaultMode: 420
-            secretName: {{ include "manager.fullname" . }}-webhook-server-cert
diff --git a/e2e/plugin/e2e_test.go b/e2e/plugin/e2e_test.go
index c80e4dcb2..17aa296c6 100644
--- a/e2e/plugin/e2e_test.go
+++ b/e2e/plugin/e2e_test.go
@@ -272,6 +272,25 @@ var _ = Describe("Plugin E2E", Ordered, func() {
 		err = adminClient.Update(ctx, testPluginPreset)
 		Expect(err).ToNot(HaveOccurred())
 
+		By("Ensure the plugin preset is updated")
+		Eventually(func(g Gomega) {
+			err = adminClient.Get(ctx, client.ObjectKeyFromObject(testPluginPreset), testPluginPreset)
+			Expect(err).ToNot(HaveOccurred())
+			Expect(testPluginPreset.Spec.ClusterOptionOverrides).To(HaveLen(1))
+			Expect(testPluginPreset.Spec.ClusterOptionOverrides[0].Overrides).To(HaveLen(1))
+			Expect(testPluginPreset.Spec.ClusterOptionOverrides[0].Overrides[0].Name).To(BeEquivalentTo("replicaCount"))
+			Expect(testPluginPreset.Spec.ClusterOptionOverrides[0].Overrides[0].Value).To(BeEquivalentTo(&apiextensionsv1.JSON{Raw: []byte("3")}))
+		}).Should(Succeed())
+
+		By("Checking the plugin status is ready")
+		Eventually(func(g Gomega) {
+			pluginList := &greenhousev1alpha1.PluginList{}
+			err = adminClient.List(ctx, pluginList)
+			g.Expect(err).NotTo(HaveOccurred())
+			g.Expect(len(pluginList.Items)).To(BeEquivalentTo(1))
+			g.Expect(pluginList.Items[0].Status.HelmReleaseStatus.Status).To(BeEquivalentTo("deployed"))
+		}).Should(Succeed())
+
 		By("Check the replicas in deployment")
 		Eventually(func(g Gomega) {
 			deploymentList := &appsv1.DeploymentList{}