--- a/eric6/PluginManager/PluginDetailsDialog.py	Mon Mar 01 17:48:43 2021 +0100
+++ b/eric6/PluginManager/PluginDetailsDialog.py	Tue Mar 02 17:17:09 2021 +0100
@@ -26,7 +26,7 @@
         """
         super(PluginDetailsDialog, self).__init__(parent)
         self.setupUi(self)
-        self.setWindowFlags(Qt.Window)
+        self.setWindowFlags(Qt.WindowType.Window)
         
         self.__autoactivate = details["autoactivate"]
         self.__active = details["active"]