diff --git a/README b/README
index fdcdaaa3..940db3f8 100644
--- a/README
+++ b/README
@@ -41,8 +41,8 @@ Usage (running)
 
 The following flags are automatically registered:
 
- - `-listen_address` (default: `127.0.0.1:42000`): where to listen for gRPC requests
- - `-debug_address` (default: `127.0.0.1:42001`): where to listen for debug HTTP requests
+ - `-listen_address` (default: `127.0.0.1:4200`): where to listen for gRPC requests
+ - `-debug_address` (default: `127.0.0.1:4201`): where to listen for debug HTTP requests
 
 Since this library also includes [hspki](https://code.hackerspace.pl/q3k/hspki), you also get all the typical `-hspki_{...}` flags included.