diff --git a/sncfgtfs/management/commands/update_sncf_gtfs.py b/sncfgtfs/management/commands/update_sncf_gtfs.py
index 207a0e4..ed71cc9 100644
--- a/sncfgtfs/management/commands/update_sncf_gtfs.py
+++ b/sncfgtfs/management/commands/update_sncf_gtfs.py
@@ -104,8 +104,7 @@ class Command(BaseCommand):
                         zone_id=stop_dict.get('zone_id', ""),
                         url=stop_dict.get('stop_url', ""),
                         location_type=stop_dict.get('location_type', 1) or 1,
-                        parent_station_id=stop_dict.get('parent_station', None) or None
-                        if last_update_date != "1970-01-01" or transport_type != "TN" else None,
+                        parent_station_id=stop_dict.get('parent_station', None) or None,
                         timezone=stop_dict.get('stop_timezone', ""),
                         wheelchair_boarding=stop_dict.get('wheelchair_boarding', 0),
                         level_id=stop_dict.get('level_id', ""),
@@ -114,17 +113,9 @@ class Command(BaseCommand):
                     )
                     stops.append(stop)
 
-                    if len(stops) >= bulk_size and not dry_run:
-                        Stop.objects.bulk_create(stops,
-                                                 update_conflicts=True,
-                                                 update_fields=['name', 'desc', 'lat', 'lon', 'zone_id', 'url',
-                                                                'location_type', 'parent_station_id', 'timezone',
-                                                                'wheelchair_boarding', 'level_id', 'platform_code',
-                                                                'transport_type'],
-                                                 unique_fields=['id'])
-                        stops.clear()
                 if stops and not dry_run:
                     Stop.objects.bulk_create(stops,
+                                             batch_size=bulk_size,
                                              update_conflicts=True,
                                              update_fields=['name', 'desc', 'lat', 'lon', 'zone_id', 'url',
                                                             'location_type', 'parent_station_id', 'timezone',