diff --git a/kustomizations/cert-manager/kustomization.yaml b/kustomizations/cert-manager/kustomization.yaml
new file mode 100644
index 0000000..22266cf
--- /dev/null
+++ b/kustomizations/cert-manager/kustomization.yaml
@@ -0,0 +1,25 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: cert-manager
+bases:
+- https://github.com/james-callahan/cert-manager-kustomize?ref=b9560b4603bffac901c99d7d9d16e5e2a07e44d8
+resources:
+- namespace.yaml
+replacements:
+  - source:
+      kind: Deployment
+      name: cert-manager-webhook
+      fieldPath: metadata.namespace
+    targets:
+      - select:
+          kind: MutatingWebhookConfiguration
+        fieldPaths:
+          - metadata.annotations.[cert-manager.io/inject-ca-from-secret]
+        options:
+          delimiter: /
+      - select:
+          kind: ValidatingWebhookConfiguration
+        fieldPaths:
+          - metadata.annotations.[cert-manager.io/inject-ca-from-secret]
+        options:
+          delimiter: /
diff --git a/kustomizations/cert-manager/namespace.yaml b/kustomizations/cert-manager/namespace.yaml
new file mode 100644
index 0000000..c90416f
--- /dev/null
+++ b/kustomizations/cert-manager/namespace.yaml
@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: cert-manager