diff --git a/framework/yii/bootstrap/ButtonGroup.php b/framework/yii/bootstrap/ButtonGroup.php
index 3606241..0aee52c 100644
--- a/framework/yii/bootstrap/ButtonGroup.php
+++ b/framework/yii/bootstrap/ButtonGroup.php
@@ -7,7 +7,7 @@
 
 namespace yii\bootstrap;
 
-use yii\helpers\base\ArrayHelper;
+use yii\helpers\ArrayHelper;
 use yii\helpers\Html;
 
 /**
diff --git a/tests/unit/framework/helpers/FileHelperTest.php b/tests/unit/framework/helpers/FileHelperTest.php
index 130ea40..1fc8d95 100644
--- a/tests/unit/framework/helpers/FileHelperTest.php
+++ b/tests/unit/framework/helpers/FileHelperTest.php
@@ -1,6 +1,6 @@
 <?php
 
-use yii\helpers\base\FileHelper;
+use yii\helpers\FileHelper;
 use yii\test\TestCase;
 
 /**