diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 57926f3..ef8cf29 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -1,6 +1,7 @@
 # Copyright (C) 2024 Manuel Bustillo
 
 class ApplicationController < ActionController::Base
+  before_action :authenticate_user!
   after_action :set_csrf_cookie
 
   skip_before_action :verify_authenticity_token, if: :development_swagger?