diff --git a/tests/test_geneticparams_feedin.py b/tests/test_geneticparams_feedin.py
index 03a0cc96..7a2afbc0 100644
--- a/tests/test_geneticparams_feedin.py
+++ b/tests/test_geneticparams_feedin.py
@@ -14,7 +14,9 @@ import pytest
 from akkudoktoreos.devices.genetic.inverter import Inverter
 from akkudoktoreos.optimization.genetic.genetic import GeneticSimulation
 from akkudoktoreos.optimization.genetic.geneticdevices import InverterParameters
-from akkudoktoreos.optimization.genetic.geneticparams import GeneticOptimizationParameters
+from akkudoktoreos.optimization.genetic.geneticparams import (
+    GeneticOptimizationParameters,
+)
 from akkudoktoreos.prediction.feedintariffabc import FeedInTariffDataRecord
 from akkudoktoreos.prediction.feedintariffimport import FeedInTariffImport
 from akkudoktoreos.utils.datetimeutil import to_datetime