diff --git a/dns/dns.yaml b/dns/dns.yaml
index e1a2a08..3f9a451 100644
--- a/dns/dns.yaml
+++ b/dns/dns.yaml
@@ -15,13 +15,13 @@ metadata:
   namespace: dns
 spec:
   selector: { app: etcd }
-  ipFamilyPolicy: SingleStack
-  ipFamilies: [IPv6]
+  ipFamilyPolicy: PreferDualStack
+  ipFamilies: [IPv6, IPv4]
   ports:
-    - name: client
-      port: 2379
-      targetPort: 2379
-      protocol: TCP
+  - name: client
+    port: 2379
+    targetPort: 2379
+    protocol: TCP
 ---
 apiVersion: apps/v1
 kind: Deployment