diff --git a/public/index.php b/public/index.php
index e43cc40..1c3e9d8 100644
--- a/public/index.php
+++ b/public/index.php
@@ -14,9 +14,16 @@ use App\Repositories\PostRepository;
 use App\Services\HtmlSanitizer;
 use App\Services\HtmlPurifierFactory;
 use App\Database\Migration;
+use App\Bootstrap;
 use App\Routes;
 use App\Config;
 
+// ============================================
+// Vérifier les répertoires
+// ============================================
+
+Bootstrap::checkDirectories();
+
 // ============================================
 // Charger les variables d'environnement
 // ============================================
diff --git a/src/Bootstrap.php b/src/Bootstrap.php
new file mode 100644
index 0000000..06ee874
--- /dev/null
+++ b/src/Bootstrap.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App;
+
+final class Bootstrap
+{
+    public static function checkDirectories(): void
+    {
+        $dirs = [
+            __DIR__ . '/../var/cache/twig',
+            __DIR__ . '/../var/cache/htmlpurifier',
+            __DIR__ . '/../var/logs',
+            __DIR__ . '/../database',
+        ];
+
+        foreach ($dirs as $dir) {
+            if (!is_dir($dir)) {
+                if (!@mkdir($dir, 0755, true)) {
+                    throw new \RuntimeException("Impossible de créer le répertoire : {$dir}");
+                }
+            }
+        }
+    }
+}