diff --git a/src/tests/mapping_test.py b/src/tests/mapping_test.py
index 3a11f64..b78faac 100644
--- a/src/tests/mapping_test.py
+++ b/src/tests/mapping_test.py
@@ -33,8 +33,11 @@
 from PyQt5.QtWidgets import QApplication, QMessageBox
 from pytest_cases import fixture_ref, parametrize
 from pytest_mock import MockerFixture
+from qcodes.instrument_drivers.mock_instruments import (
+    DummyChannelInstrument,
+    DummyInstrument,
+)
 from qcodes.station import Station
-from qcodes.instrument_drivers.mock_instruments import DummyChannelInstrument, DummyInstrument
 
 import qumada.instrument.mapping as mapping
 from qumada.instrument.custom_drivers.Dummies.dummy_dac import DummyDac