diff --git a/backend/scripts/sync_all_zones.py b/backend/scripts/sync_all_zones.py
index 4cc7263..e27e571 100644
--- a/backend/scripts/sync_all_zones.py
+++ b/backend/scripts/sync_all_zones.py
@@ -87,9 +87,12 @@ class ZoneSyncResult:
 
 async def get_db_session():
     """Create async database session"""
-    from app.config import settings
+    from app.config import get_settings
     
-    engine = create_async_engine(settings.database_url.replace("sqlite://", "sqlite+aiosqlite://"))
+    db_url = get_settings().database_url
+    if "aiosqlite" not in db_url:
+        db_url = db_url.replace("sqlite://", "sqlite+aiosqlite://")
+    engine = create_async_engine(db_url)
     async_session = sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
     return async_session()