diff --git a/extensions/yii/jui/AutoComplete.php b/extensions/yii/jui/AutoComplete.php
index ac0c9977d6..93f4332f4c 100644
--- a/extensions/yii/jui/AutoComplete.php
+++ b/extensions/yii/jui/AutoComplete.php
@@ -7,7 +7,6 @@
 
 namespace yii\jui;
 
-use Yii;
 use yii\helpers\Html;
 
 /**
diff --git a/extensions/yii/jui/InputWidget.php b/extensions/yii/jui/InputWidget.php
index 0facfb94ea..77201bad5b 100644
--- a/extensions/yii/jui/InputWidget.php
+++ b/extensions/yii/jui/InputWidget.php
@@ -7,7 +7,6 @@
 
 namespace yii\jui;
 
-use Yii;
 use yii\base\Model;
 use yii\base\InvalidConfigException;
 use yii\helpers\Html;
diff --git a/extensions/yii/jui/Menu.php b/extensions/yii/jui/Menu.php
index 46c7ee02a6..bce215705e 100644
--- a/extensions/yii/jui/Menu.php
+++ b/extensions/yii/jui/Menu.php
@@ -7,7 +7,6 @@
 
 namespace yii\jui;
 
-use Yii;
 use yii\helpers\Json;
 
 /**
diff --git a/extensions/yii/jui/Spinner.php b/extensions/yii/jui/Spinner.php
index d53bd3ade4..b88c70ba29 100644
--- a/extensions/yii/jui/Spinner.php
+++ b/extensions/yii/jui/Spinner.php
@@ -7,7 +7,6 @@
 
 namespace yii\jui;
 
-use Yii;
 use yii\helpers\Html;
 
 /**
diff --git a/extensions/yii/jui/Widget.php b/extensions/yii/jui/Widget.php
index 8881a777a6..62bbd160db 100644
--- a/extensions/yii/jui/Widget.php
+++ b/extensions/yii/jui/Widget.php
@@ -7,7 +7,6 @@
 
 namespace yii\jui;
 
-use Yii;
 use yii\helpers\Json;
 
 /**