diff --git a/cert-manager/kustomization.yaml b/cert-manager/kustomization.yaml
index 1da8f04..24ab378 100644
--- a/cert-manager/kustomization.yaml
+++ b/cert-manager/kustomization.yaml
@@ -28,3 +28,18 @@ secretGenerator:
   - cloudflare.api-token
   options:
     disableNameSuffixHash: true
+
+patches:
+- patch: |
+    apiVersion: apps/v1
+    kind: Deployment
+    metadata:
+      name: cert-manager
+      namespace: cert-manager
+    spec:
+      template:
+        spec:
+          dnsConfig:
+            nameservers:
+            - 172.30.0.1
+          dnsPolicy: None
diff --git a/step-ca/kustomization.yaml b/step-ca/kustomization.yaml
index 98f9995..a6489da 100644
--- a/step-ca/kustomization.yaml
+++ b/step-ca/kustomization.yaml
@@ -21,3 +21,18 @@ configMapGenerator:
   files:
   - root_ca.crt
   - intermediate_ca.crt
+
+patches:
+- patch: |
+    apiVersion: apps/v1
+    kind: StatefulSet
+    metadata:
+      name: step-ca
+      namespace: step-ca
+    spec:
+      template:
+        spec:
+          dnsConfig:
+            nameservers:
+            - 172.30.0.1
+          dnsPolicy: None