--- a/eric6/Plugins/AboutPlugin/AboutDialog.py	Mon Mar 01 17:48:43 2021 +0100
+++ b/eric6/Plugins/AboutPlugin/AboutDialog.py	Tue Mar 02 17:17:09 2021 +0100
@@ -748,7 +748,7 @@
         """
         super(AboutDialog, self).__init__(parent)
         self.setupUi(self)
-        self.setWindowFlags(Qt.Window)
+        self.setWindowFlags(Qt.WindowType.Window)
         
         self.ericLabel.setText(titleText)
         self.ericPixmap.setPixmap(