diff --git a/argocd-helm-charts/cert-manager/templates/netpol-default.yaml b/argocd-helm-charts/cert-manager/templates/netpol-default.yaml
index 32a3972d..85472b0c 100644
--- a/argocd-helm-charts/cert-manager/templates/netpol-default.yaml
+++ b/argocd-helm-charts/cert-manager/templates/netpol-default.yaml
@@ -14,7 +14,7 @@ spec:
     protocol: TCP
     source:
       namespaceSelector: projectcalico.org/name == 'monitoring'
-      selector: name == prometheus
+      selector: app.kubernetes.io/name == 'prometheus'
     destination:
       ports:
       - 9402