diff --git a/lib/main.dart b/lib/main.dart
index f07f253..1d7413d 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -548,7 +548,10 @@ class AuthentikUserSettingsChangeDialogState extends ChangeNotifier {
     final identifier = 'UwSMm8gTwBTUURSaxp5uPpuwX1OkGO4FRHeO9v3i';
     final secret = null;
 
-    final redirectUrl = Uri.parse('http://localhost:30165/');
+    server = await HttpServer.bind("127.0.0.1", 0);
+
+    final port = server!.port;
+    final redirectUrl = Uri.parse('http://localhost:$port/');
 
     var grant = oauth2.AuthorizationCodeGrant(
       identifier,
@@ -562,8 +565,6 @@ class AuthentikUserSettingsChangeDialogState extends ChangeNotifier {
       scopes: ["profile", "email", "goauthentik.io/api", "openid"],
     );
 
-    server = await HttpServer.bind("127.0.0.1", 30165);
-
     if (!await launchUrl(
       authorizationUrl,
       mode: LaunchMode.externalApplication,