diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index 452e6b6..8325058 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Providers;
 
 use Illuminate\Support\ServiceProvider;
diff --git a/bootstrap/app.php b/bootstrap/app.php
index 4687853..c9bfa46 100644
--- a/bootstrap/app.php
+++ b/bootstrap/app.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Foundation\Application;
 use Illuminate\Foundation\Configuration\Exceptions;
 use Illuminate\Foundation\Configuration\Middleware;
diff --git a/bootstrap/providers.php b/bootstrap/providers.php
index 38b258d..84c7d4d 100644
--- a/bootstrap/providers.php
+++ b/bootstrap/providers.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
     App\Providers\AppServiceProvider::class,
 ];
diff --git a/config/core.php b/config/core.php
index 06502fa..9ba817d 100644
--- a/config/core.php
+++ b/config/core.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
     /*
     |--------------------------------------------------------------------------
diff --git a/database/seeders/DatabaseSeeder.php b/database/seeders/DatabaseSeeder.php
index df6818f..8409bbc 100644
--- a/database/seeders/DatabaseSeeder.php
+++ b/database/seeders/DatabaseSeeder.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Database\Seeders;
 
 use Illuminate\Database\Seeder;
diff --git a/public/index.php b/public/index.php
index 947d989..d55a3b2 100644
--- a/public/index.php
+++ b/public/index.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Http\Request;
 
 define('LARAVEL_START', microtime(true));
diff --git a/routes/api.php b/routes/api.php
index 15fbf70..31a9b77 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Facades\Route;
 
 // API routes are registered via Core modules
diff --git a/routes/console.php b/routes/console.php
index d6f3c8b..ca1bbfa 100644
--- a/routes/console.php
+++ b/routes/console.php
@@ -1,3 +1,5 @@
 <?php
 
+declare(strict_types=1);
+
 // Console commands are registered via Core modules
diff --git a/routes/web.php b/routes/web.php
index 86a06c5..7bceeaf 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Facades\Route;
 
 Route::get('/', function () {