diff --git a/examples/quick/qml/MainWindow.qml b/examples/quick/qml/MainWindow.qml
index 0b68212..7b3d8f0 100644
--- a/examples/quick/qml/MainWindow.qml
+++ b/examples/quick/qml/MainWindow.qml
@@ -22,9 +22,9 @@
  * SOFTWARE.
  */
 
-import QtQuick 2.15
-import QtQuick.Window 2.15
-import QtQuick.Controls 2.15
+import QtQuick 2.12
+import QtQuick.Window 2.12
+import QtQuick.Controls 2.12
 import org.wangwenx190.FramelessHelper 1.0
 
 Window {