diff --git a/cura/CrashHandler.py b/cura/CrashHandler.py
index 4f3fb34f7f..563755f6d4 100644
--- a/cura/CrashHandler.py
+++ b/cura/CrashHandler.py
@@ -136,8 +136,8 @@ class CrashHandler:
 
         # "backup and start clean" and "close" buttons
         buttons = QDialogButtonBox()
-        buttons.addButton(QDialogButtonBox.Close)
-        buttons.addButton(catalog.i18nc("@action:button", "Backup and Reset Configuration"), QDialogButtonBox.AcceptRole)
+        buttons.addButton(QDialogButtonBox.StandardButton.Close)
+        buttons.addButton(catalog.i18nc("@action:button", "Backup and Reset Configuration"), QDialogButtonBox.ButtonRole.AcceptRole)
         buttons.rejected.connect(self._closeEarlyCrashDialog)
         buttons.accepted.connect(self._backupAndStartClean)
 
@@ -409,12 +409,12 @@ class CrashHandler:
 
     def _buttonsWidget(self):
         buttons = QDialogButtonBox()
-        buttons.addButton(QDialogButtonBox.Close)
+        buttons.addButton(QDialogButtonBox.StandardButton.Close)
         # Like above, this will be served as a separate detailed report dialog if the application has not yet been
         # fully loaded. In this case, "send report" will be a check box in the early crash dialog, so there is no
         # need for this extra button.
         if self.has_started:
-            buttons.addButton(catalog.i18nc("@action:button", "Send report"), QDialogButtonBox.AcceptRole)
+            buttons.addButton(catalog.i18nc("@action:button", "Send report"), QDialogButtonBox.ButtonRole.AcceptRole)
             buttons.accepted.connect(self._sendCrashReport)
         buttons.rejected.connect(self.dialog.close)
 
diff --git a/cura_app.py b/cura_app.py
index 4b689fdadb..2374197b59 100755
--- a/cura_app.py
+++ b/cura_app.py
@@ -175,7 +175,7 @@ def exceptHook(hook_type, value, traceback):
         if CuraApplication.splash is not None:
             CuraApplication.splash.close()
         _crash_handler.early_crash_dialog.show()
-        sys.exit(application.exec_())
+        sys.exit(application.exec())
 
 
 # Set exception hook to use the crash dialog handler