diff --git a/main.go b/main.go
index 6c689770..deb34d5c 100644
--- a/main.go
+++ b/main.go
@@ -42,8 +42,8 @@ func (c *aristaClient) structuredCall(res interface{}, command ...string) error
 
 func main() {
 	flag.StringVar(&flagAristaAPI, "arista_api", "http://admin:password@1.2.3.4:80/command-api", "Arista remote endpoint")
-	flag.StringVar(&flagListenAddress, "listen_address", "127.0.0.1:8080", "gRPC listen address")
-	flag.StringVar(&flagDebugAddress, "debug_address", "127.0.0.1:8081", "Debug HTTP listen address, or empty to disable")
+	flag.StringVar(&flagListenAddress, "listen_address", "127.0.0.1:42000", "gRPC listen address")
+	flag.StringVar(&flagDebugAddress, "debug_address", "127.0.0.1:42001", "Debug HTTP listen address, or empty to disable")
 	flag.StringVar(&flagCAPath, "tls_ca_path", "pki/ca.pem", "Path to PKI CA certificate")
 	flag.StringVar(&flagCertificatePath, "tls_certificate_path", "pki/service.pem", "Path to PKI service certificate")
 	flag.StringVar(&flagKeyPath, "tls_key_path", "pki/service-key.pem", "Path to PKI service private key")