diff --git a/README.md b/README.md
index f5f85c73..2537f107 100644
--- a/README.md
+++ b/README.md
@@ -46,8 +46,10 @@ To do so, a Thing Description JSON string is first parsed and turned into a
 import 'package:dart_wot/dart_wot.dart';
 
 Future<void> main(List<String> args) async {
-  final CoapClientFactory coapClientFactory = CoapClientFactory(null);
-  final servient = Servient()..addClientFactory(coapClientFactory);
+  final CoapClientFactory coapClientFactory = CoapClientFactory();
+  final servient = Servient(
+    protocolClients: [coapClientFactory]
+  );
   final wot = await servient.start();
 
   final thingDescriptionJson = '''