diff --git a/tests/test_busy.py b/tests/test_busy.py
index 8a12d8c..d3b80fc 100644
--- a/tests/test_busy.py
+++ b/tests/test_busy.py
@@ -1,4 +1,4 @@
-from datetime import date, datetime
+from datetime import date, datetime, timezone
 
 import agenda.busy
 import agenda.travel as travel
@@ -157,7 +157,8 @@ def test_parse_datetime_field():
     # Test with datetime object
     dt = datetime(2023, 1, 1, 12, 0, 0)
     parsed_dt, parsed_date = _parse_datetime_field(dt)
-    assert parsed_dt == dt
+    assert parsed_dt == dt.replace(tzinfo=timezone.utc)
+    assert parsed_dt.tzinfo == timezone.utc
     assert parsed_date == date(2023, 1, 1)
 
     # Test with ISO string