diff --git a/arq/cron.py b/arq/cron.py
index 2eca6c75..94775986 100644
--- a/arq/cron.py
+++ b/arq/cron.py
@@ -66,9 +66,9 @@ def _get_next_dt(dt_: datetime, options: Options) -> Optional[datetime]:  # noqa
             micro = max(dt_.microsecond - options.microsecond, 0)
             if field == 'month':
                 if dt_.month == 12:
-                    return datetime(dt_.year + 1, 1, 1)
+                    return datetime(dt_.year + 1, 1, 1, tzinfo=dt_.tzinfo)
                 else:
-                    return datetime(dt_.year, dt_.month + 1, 1)
+                    return datetime(dt_.year, dt_.month + 1, 1, tzinfo=dt_.tzinfo)
             elif field in ('day', 'weekday'):
                 return (
                     dt_