diff --git a/test/codeception-report/unit/StepsTest.php b/test/codeception-report/unit/StepsTest.php
index 2bb7bfb..e55ea6d 100644
--- a/test/codeception-report/unit/StepsTest.php
+++ b/test/codeception-report/unit/StepsTest.php
@@ -95,7 +95,7 @@ public function __construct(string $failure, string $action, array $arguments =
             }
 
             #[\Override]
-            public function run(ModuleContainer $container = null): void
+            public function run(?ModuleContainer $container = null): void
             {
                 $this->setFailed(true);
                 Unit::fail($this->failure);