diff --git a/docs/modules/postgresql.md b/docs/modules/postgresql.md
index 071de1f..0f8d40e 100644
--- a/docs/modules/postgresql.md
+++ b/docs/modules/postgresql.md
@@ -11,6 +11,8 @@
 
 declare(strict_types=1);
 
+require_once 'vendor/autoload.php';
+
 use Testcontainers\Modules\PostgresContainer;
 
 $container = (new PostgresContainer())