Laravel middleware auth:api not working

I am trying to make a PUT request in my api to update a model, but the auth:api wont work.

My route looks like:

Route::group(['prefix' => 'api/v1', 'middleware' => ['api', 'auth:api']], function () {
    Route::put('user', 'ApiUserController@updateUserMail');
});

If I now send a PUT request to app.dev/api/v1/user using postman I get a:

404 NotFoundHttpException in RouteCollection.php line 161

But if I remove auth:api from my middleware and run the request again I will enter the controller.

No idea whats wrong.

via Chebli Mohamed