diff --git a/tests/controller/test_processing.py b/tests/controller/test_processing.py
index 899e58e95ba3d3e33ce899685b55fdfff1fd08fa..494110185727ed73b14f4138ea3ff129189a7f88 100644
--- a/tests/controller/test_processing.py
+++ b/tests/controller/test_processing.py
@@ -12,7 +12,7 @@ from sohstationviewer.controller.processing import (
     get_data_type_from_file
 )
 from sohstationviewer.database.extract_data import get_signature_channels
-from PySide2 import QtWidgets
+from PySide6 import QtWidgets
 
 
 TEST_DATA_DIR = Path(__file__).resolve().parent.parent.joinpath('test_data')