diff --git a/tests/unit/_bootstrap.php b/tests/unit/_bootstrap.php
index 8592f19..80cc72a 100644
--- a/tests/unit/_bootstrap.php
+++ b/tests/unit/_bootstrap.php
@@ -1,5 +1,3 @@
 <?php
 
 // add unit testing specific bootstrap code here
-
-yii\codeception\TestCase::$appConfig = require(__DIR__ . '/_config.php');