diff --git a/README.md b/README.md
index 94107a2..26c2c5e 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ DnsManager 可以创建一次，一直使用。
     IResolver[] resolvers = new IResolver[3];
     resolvers[0] = AndroidDnsServer.defaultResolver(getContext()); //系统默认 DNS 服务器
     resolvers[1] = new DnsUdpResolver("8.8.8.8"); //自定义 DNS 服务器地址
+    resolvers[2] = new DohResolver("https://dns.alidns.com/dns-query");
     DnsManager dns = new DnsManager(NetworkInfo.normal(), resolvers);
     Record[] records = dns.queryRecords("www.qiniu.com");
 ```