diff --git a/app/Console/Commands/CacheMarkdown.php b/app/Console/Commands/CacheMarkdown.php
index bca9ea4..527f58c 100644
--- a/app/Console/Commands/CacheMarkdown.php
+++ b/app/Console/Commands/CacheMarkdown.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Console\Commands;
 
 use App\Services\ChangelogService;
diff --git a/app/Console/Kernel.php b/app/Console/Kernel.php
index c05e2fb..3617a5e 100644
--- a/app/Console/Kernel.php
+++ b/app/Console/Kernel.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Console;
 
 use App\Console\Commands\CacheMarkdown;
diff --git a/app/Exceptions/Handler.php b/app/Exceptions/Handler.php
index b2d1e60..15753a2 100644
--- a/app/Exceptions/Handler.php
+++ b/app/Exceptions/Handler.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Exceptions;
 
 use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
diff --git a/app/Http/Kernel.php b/app/Http/Kernel.php
index 663f74f..9067baa 100644
--- a/app/Http/Kernel.php
+++ b/app/Http/Kernel.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Http;
 
 use App\Http\Middleware\EncryptCookies;
diff --git a/app/Http/Middleware/EncryptCookies.php b/app/Http/Middleware/EncryptCookies.php
index 867695b..a293077 100644
--- a/app/Http/Middleware/EncryptCookies.php
+++ b/app/Http/Middleware/EncryptCookies.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Http\Middleware;
 
 use Illuminate\Cookie\Middleware\EncryptCookies as Middleware;
diff --git a/app/Http/Middleware/PreventRequestsDuringMaintenance.php b/app/Http/Middleware/PreventRequestsDuringMaintenance.php
index 74cbd9a..d7353a2 100644
--- a/app/Http/Middleware/PreventRequestsDuringMaintenance.php
+++ b/app/Http/Middleware/PreventRequestsDuringMaintenance.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Http\Middleware;
 
 use Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance as Middleware;
diff --git a/app/Http/Middleware/TrimStrings.php b/app/Http/Middleware/TrimStrings.php
index 88cadca..b538af8 100644
--- a/app/Http/Middleware/TrimStrings.php
+++ b/app/Http/Middleware/TrimStrings.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Http\Middleware;
 
 use Illuminate\Foundation\Http\Middleware\TrimStrings as Middleware;
diff --git a/app/Http/Middleware/TrustProxies.php b/app/Http/Middleware/TrustProxies.php
index 3391630..5ec274d 100644
--- a/app/Http/Middleware/TrustProxies.php
+++ b/app/Http/Middleware/TrustProxies.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Http\Middleware;
 
 use Illuminate\Http\Middleware\TrustProxies as Middleware;
diff --git a/app/Http/Middleware/VerifyCsrfToken.php b/app/Http/Middleware/VerifyCsrfToken.php
index 9e86521..c4527ee 100644
--- a/app/Http/Middleware/VerifyCsrfToken.php
+++ b/app/Http/Middleware/VerifyCsrfToken.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Http\Middleware;
 
 use Illuminate\Foundation\Http\Middleware\VerifyCsrfToken as Middleware;
diff --git a/app/Mail/Changelog.php b/app/Mail/Changelog.php
index 725ccea..6f61af2 100644
--- a/app/Mail/Changelog.php
+++ b/app/Mail/Changelog.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Mail;
 
 use App\Services\ChangelogService;
diff --git a/app/Mail/WelcomeToMailbook.php b/app/Mail/WelcomeToMailbook.php
index bdef24f..7a1e58a 100644
--- a/app/Mail/WelcomeToMailbook.php
+++ b/app/Mail/WelcomeToMailbook.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Mail;
 
 use App\Services\ReadmeService;
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index b8d4897..8e9b27e 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/app/Providers/RouteServiceProvider.php b/app/Providers/RouteServiceProvider.php
index 048ee10..a72439e 100644
--- a/app/Providers/RouteServiceProvider.php
+++ b/app/Providers/RouteServiceProvider.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Providers;
 
 use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
diff --git a/app/Services/ChangelogService.php b/app/Services/ChangelogService.php
index 94cef1a..14e2687 100644
--- a/app/Services/ChangelogService.php
+++ b/app/Services/ChangelogService.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Services;
 
 use Illuminate\Support\Facades\Cache;
diff --git a/app/Services/ReadmeService.php b/app/Services/ReadmeService.php
index 2edd2d4..48eb562 100644
--- a/app/Services/ReadmeService.php
+++ b/app/Services/ReadmeService.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Services;
 
 use Illuminate\Support\Facades\Cache;
diff --git a/bootstrap/app.php b/bootstrap/app.php
index 037e17d..08d677b 100644
--- a/bootstrap/app.php
+++ b/bootstrap/app.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /*
 |--------------------------------------------------------------------------
 | Create The Application
diff --git a/config/app.php b/config/app.php
index aec1f16..d34a132 100644
--- a/config/app.php
+++ b/config/app.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Facades\Facade;
 
 return [
diff --git a/config/auth.php b/config/auth.php
index d8c6cee..0f8b0ba 100644
--- a/config/auth.php
+++ b/config/auth.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/config/broadcasting.php b/config/broadcasting.php
index 1688242..6e27cb0 100644
--- a/config/broadcasting.php
+++ b/config/broadcasting.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/config/cache.php b/config/cache.php
index 33bb295..c82c508 100644
--- a/config/cache.php
+++ b/config/cache.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Str;
 
 return [
diff --git a/config/cors.php b/config/cors.php
index 558369d..789e142 100644
--- a/config/cors.php
+++ b/config/cors.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/config/database.php b/config/database.php
index 137ad18..f75f0d9 100644
--- a/config/database.php
+++ b/config/database.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Str;
 
 return [
diff --git a/config/filesystems.php b/config/filesystems.php
index e9d9dbd..d307268 100644
--- a/config/filesystems.php
+++ b/config/filesystems.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/config/hashing.php b/config/hashing.php
index bcd3be4..41cba61 100644
--- a/config/hashing.php
+++ b/config/hashing.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/config/logging.php b/config/logging.php
index 5aa1dbb..1bfe2b1 100644
--- a/config/logging.php
+++ b/config/logging.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Monolog\Handler\NullHandler;
 use Monolog\Handler\StreamHandler;
 use Monolog\Handler\SyslogUdpHandler;
diff --git a/config/mail.php b/config/mail.php
index 534395a..1c7e4c7 100644
--- a/config/mail.php
+++ b/config/mail.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/config/mailbook.php b/config/mailbook.php
index 74a2ce7..c8ee4d0 100644
--- a/config/mailbook.php
+++ b/config/mailbook.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
     /*
     |--------------------------------------------------------------------------
diff --git a/config/markdown.php b/config/markdown.php
index 2428d63..da82d52 100644
--- a/config/markdown.php
+++ b/config/markdown.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
     'code_highlighting' => [
         /*
diff --git a/config/queue.php b/config/queue.php
index 25ea5a8..485dd98 100644
--- a/config/queue.php
+++ b/config/queue.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/config/sentry.php b/config/sentry.php
index 34acba7..2a80e01 100644
--- a/config/sentry.php
+++ b/config/sentry.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     'dsn' => env('SENTRY_LARAVEL_DSN', env('SENTRY_DSN')),
diff --git a/config/services.php b/config/services.php
index 0ace530..104826f 100644
--- a/config/services.php
+++ b/config/services.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/config/session.php b/config/session.php
index 8fed97c..eeee93d 100644
--- a/config/session.php
+++ b/config/session.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Str;
 
 return [
diff --git a/config/view.php b/config/view.php
index 22b8a18..d9c90c0 100644
--- a/config/view.php
+++ b/config/view.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/pint.json b/pint.json
new file mode 100644
index 0000000..510234c
--- /dev/null
+++ b/pint.json
@@ -0,0 +1,10 @@
+{
+    "rules": {
+        "declare_strict_types": true,
+        "void_return": true
+    },
+    "exclude": [
+        "build",
+        "stubs"
+    ]
+}
diff --git a/public/index.php b/public/index.php
index 1d69f3a..0765415 100644
--- a/public/index.php
+++ b/public/index.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Contracts\Http\Kernel;
 use Illuminate\Http\Request;
 
diff --git a/routes/mailbook.php b/routes/mailbook.php
index 823fbd4..4f38926 100644
--- a/routes/mailbook.php
+++ b/routes/mailbook.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use App\Mail\Account\AccountCreated;
 use App\Mail\Account\AccountDeleted;
 use App\Mail\Changelog;
diff --git a/tests/CreatesApplication.php b/tests/CreatesApplication.php
index 547152f..361c1c6 100644
--- a/tests/CreatesApplication.php
+++ b/tests/CreatesApplication.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests;
 
 use Illuminate\Contracts\Console\Kernel;
diff --git a/tests/Feature/Console/Commands/UpdateMarkdownTest.php b/tests/Feature/Console/Commands/UpdateMarkdownTest.php
index 0810ba9..24a3852 100644
--- a/tests/Feature/Console/Commands/UpdateMarkdownTest.php
+++ b/tests/Feature/Console/Commands/UpdateMarkdownTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use App\Console\Commands\CacheMarkdown;
 use Illuminate\Support\Facades\Cache;
 
diff --git a/tests/Feature/MailbookTest.php b/tests/Feature/MailbookTest.php
index b3c1f74..dc324ba 100644
--- a/tests/Feature/MailbookTest.php
+++ b/tests/Feature/MailbookTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Xammie\Mailbook\Facades\Mailbook;
 
 it('can render all mailables', function (string $locale): void {
diff --git a/tests/Feature/ScheduleTest.php b/tests/Feature/ScheduleTest.php
index 77c3e30..5421c5f 100644
--- a/tests/Feature/ScheduleTest.php
+++ b/tests/Feature/ScheduleTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use function Pest\Laravel\artisan;
 
 it('can run schedule', function (): void {
diff --git a/tests/Pest.php b/tests/Pest.php
index 4b9c001..8aa72d9 100644
--- a/tests/Pest.php
+++ b/tests/Pest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /*
 |--------------------------------------------------------------------------
 | Test Case
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 2932d4a..5341116 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests;
 
 use Illuminate\Foundation\Testing\TestCase as BaseTestCase;