diff --git a/argocd-apps/metallb-base.yaml b/argocd-apps/metallb-base.yaml
index 20da9c8..a6eb7a1 100644
--- a/argocd-apps/metallb-base.yaml
+++ b/argocd-apps/metallb-base.yaml
@@ -15,13 +15,14 @@ spec:
     server: https://kubernetes.default.svc
     namespace: metallb-system
   ignoreDifferences:
-    - group: admissionregistration.k8s.io
-      kind: ValidatingWebhookConfiguration
-    - group: apiextensions.k8s.io
-      kind: CustomResourceDefinition
-    - group: apiextensions.k8s.io
-      kind: CustomResourceDefinition
-      name: bgppeers.metallb.io
+  - group: admissionregistration.k8s.io
+    kind: ValidatingWebhookConfiguration
+    jsonPointers:
+      - /webhooks/0/clientConfig/caBundle
+  - group: apiextensions.k8s.io
+    kind: CustomResourceDefinition
+    jsonPointers:
+      - /spec/conversion/webhook/clientConfig/caBundle
   syncPolicy:
     automated:
       prune: true