diff --git a/app/Http/Middleware/SecurityHeaders.php b/app/Http/Middleware/SecurityHeaders.php
new file mode 100644
index 0000000..cf3fe0c
--- /dev/null
+++ b/app/Http/Middleware/SecurityHeaders.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class SecurityHeaders
+{
+    /**
+     * Handle an incoming request.
+     */
+    public function handle(Request $request, Closure $next): Response
+    {
+        $response = $next($request);
+
+        // Ajouter les headers de sécurité
+        $response->headers->set('Strict-Transport-Security', 'max-age=31536000; includeSubDomains', true);
+        $response->headers->set('X-Content-Type-Options', 'nosniff', true);
+        $response->headers->set('X-Frame-Options', 'SAMEORIGIN', true);
+        $response->headers->set('X-XSS-Protection', '1; mode=block', true);
+        $response->headers->set('Referrer-Policy', 'strict-origin-when-cross-origin', true);
+
+        return $response;
+    }
+}
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index 452e6b6..e39d9ab 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -3,6 +3,7 @@
 namespace App\Providers;
 
 use Illuminate\Support\ServiceProvider;
+use Illuminate\Support\Facades\URL;
 
 class AppServiceProvider extends ServiceProvider
 {
@@ -19,6 +20,9 @@ class AppServiceProvider extends ServiceProvider
      */
     public function boot(): void
     {
-        //
+        // Forcer HTTPS en production et staging
+        if (!app()->environment('local')) {
+            URL::forceScheme('https');
+        }
     }
 }
diff --git a/bootstrap/app.php b/bootstrap/app.php
index c183276..47c5884 100644
--- a/bootstrap/app.php
+++ b/bootstrap/app.php
@@ -3,6 +3,7 @@
 use Illuminate\Foundation\Application;
 use Illuminate\Foundation\Configuration\Exceptions;
 use Illuminate\Foundation\Configuration\Middleware;
+use App\Http\Middleware\SecurityHeaders;
 
 return Application::configure(basePath: dirname(__DIR__))
     ->withRouting(
@@ -11,7 +12,7 @@ return Application::configure(basePath: dirname(__DIR__))
         health: '/up',
     )
     ->withMiddleware(function (Middleware $middleware): void {
-        //
+        $middleware->append(SecurityHeaders::class);
     })
     ->withExceptions(function (Exceptions $exceptions): void {
         //