diff --git a/tests/live_stream_tracker_test.py b/tests/live_stream_tracker_test.py
index 3d3fba5..4d38568 100644
--- a/tests/live_stream_tracker_test.py
+++ b/tests/live_stream_tracker_test.py
@@ -61,7 +61,9 @@ def test_generate_detections(
         mock_results[0].boxes = mock_boxes
         mock_yolo_instance.track.return_value = mock_results
 
-        mock_now = datetime.datetime(2023, 1, 1, 0, 0, 0, tzinfo=datetime.timezone.utc)
+        mock_now = datetime.datetime(
+            2023, 1, 1, 0, 0, 0, tzinfo=datetime.timezone.utc,
+        )
         mock_datetime.datetime.now.side_effect = [mock_now, mock_now]
 
         frame_generator = self.detector.generate_detections()
@@ -98,10 +100,14 @@ def test_run_detection(self, mock_generate_detections):
 
         with patch('builtins.print') as mock_print:
             self.detector.run_detection()
-            expected_datetime = datetime.datetime.fromtimestamp(1234567890.0, tz=datetime.timezone.utc).strftime('%Y-%m-%d %H:%M:%S')
+            expected_datetime = datetime.datetime.fromtimestamp(
+                1234567890.0, tz=datetime.timezone.utc,
+            ).strftime('%Y-%m-%d %H:%M:%S')
             self.assertTrue(
                 any(
-                    'Timestamp:' in str(call) and expected_datetime in str(call)
+                    'Timestamp:' in str(
+                        call,
+                    ) and expected_datetime in str(call)
                     for call in mock_print.call_args_list
                 ),
             )
diff --git a/tests/monitor_logger_test.py b/tests/monitor_logger_test.py
index 89f0d0a..885f460 100644
--- a/tests/monitor_logger_test.py
+++ b/tests/monitor_logger_test.py
@@ -115,7 +115,9 @@ def test_logger_output(
         # Test logging output
         with self.assertLogs(logger, level='INFO') as log:
             logger.info('Test log message')
-            expected_message = 'INFO:SiteSafetyMonitor_test.log:Test log message'.upper()
+            expected_message = (
+                'INFO:SiteSafetyMonitor_test.log:Test log message'.upper()
+            )
             log_messages = [msg.upper() for msg in log.output]
             self.assertIn(expected_message, log_messages)