--- a/eric7/Graphics/UMLItem.py	Mon Oct 25 17:47:08 2021 +0200
+++ b/eric7/Graphics/UMLItem.py	Mon Oct 25 17:57:51 2021 +0200
@@ -215,7 +215,7 @@
         pen = self.pen()
         if (
             (option.state & QStyle.StateFlag.State_Selected) ==
-            QStyle.State(QStyle.StateFlag.State_Selected)
+            QStyle.StateFlag.State_Selected
         ):
             pen.setWidth(2)
         else: