diff --git a/kustomizations/cert-manager/kustomization.yaml b/kustomizations/cert-manager/kustomization.yaml
index 22266cf..143a554 100644
--- a/kustomizations/cert-manager/kustomization.yaml
+++ b/kustomizations/cert-manager/kustomization.yaml
@@ -1,9 +1,8 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 namespace: cert-manager
-bases:
-- https://github.com/james-callahan/cert-manager-kustomize?ref=b9560b4603bffac901c99d7d9d16e5e2a07e44d8
 resources:
+- https://github.com/james-callahan/cert-manager-kustomize?ref=b9560b4603bffac901c99d7d9d16e5e2a07e44d8
 - namespace.yaml
 replacements:
   - source: