diff --git a/tests/unit/data/config.php b/tests/unit/data/config.php
index 1cd036d..d12df7f 100644
--- a/tests/unit/data/config.php
+++ b/tests/unit/data/config.php
@@ -50,7 +50,7 @@ return [
 		],
 	],
 	'mongo' => [
-		'dsn' => 'mongodb://localhost:27017',
+		'dsn' => 'mongodb://travis:test@localhost:27017',
 		'dbName' => 'yii2test',
 		'options' => [],
 	]
diff --git a/tests/unit/extensions/mongo/MongoTestCase.php b/tests/unit/extensions/mongo/MongoTestCase.php
index 61f35c8..439afb2 100644
--- a/tests/unit/extensions/mongo/MongoTestCase.php
+++ b/tests/unit/extensions/mongo/MongoTestCase.php
@@ -15,6 +15,7 @@ class MongoTestCase extends TestCase
 	protected $mongoConfig = [
 		'dsn' => 'mongodb://localhost:27017',
 		'defaultDatabaseName' => 'yii2test',
+		'options' => [],
 	];
 	/**
 	 * @var Connection Mongo connection instance.