diff --git a/client-py3/full/src/UDSClient.py b/client-py3/full/src/UDSClient.py
index 9a7f56d2..44f7d206 100755
--- a/client-py3/full/src/UDSClient.py
+++ b/client-py3/full/src/UDSClient.py
@@ -389,7 +389,7 @@ def main(args: typing.List[str]):
 
         win.start()
 
-        exitVal = app.exec_()
+        exitVal = app.exec()
         logger.debug('Execution finished correctly')
 
     except Exception as e:
diff --git a/client-py3/full/src/UDSClientLauncher.py b/client-py3/full/src/UDSClientLauncher.py
index 42c53c0a..aa823ec1 100644
--- a/client-py3/full/src/UDSClientLauncher.py
+++ b/client-py3/full/src/UDSClientLauncher.py
@@ -68,7 +68,7 @@ def main(args: typing.List[str]):
 
         window.showMinimized()
 
-        sys.exit(app.exec_())
+        sys.exit(app.exec())
 
 if __name__ == "__main__":
     main(args=sys.argv)
diff --git a/client-py3/full/src/UDSLauncherMac.py b/client-py3/full/src/UDSLauncherMac.py
index f7bc9037..3a9e6eae 100644
--- a/client-py3/full/src/UDSLauncherMac.py
+++ b/client-py3/full/src/UDSLauncherMac.py
@@ -72,4 +72,4 @@ if __name__ == "__main__":
     ui = Ui_MacLauncher()
     ui.setupUi(MacLauncher)
     MacLauncher.show()
-    sys.exit(app.exec_())
+    sys.exit(app.exec())
diff --git a/client-py3/full/src/UDSWindow.py b/client-py3/full/src/UDSWindow.py
index c6704072..c610384f 100644
--- a/client-py3/full/src/UDSWindow.py
+++ b/client-py3/full/src/UDSWindow.py
@@ -90,4 +90,4 @@ if __name__ == "__main__":
     ui = Ui_MainWindow()
     ui.setupUi(MainWindow)
     MainWindow.show()
-    sys.exit(app.exec_())
+    sys.exit(app.exec())