diff --git a/api/tests/test_models_part_01_03.py b/api/tests/test_models_part_01_03.py
index 00e8f75..db205b3 100644
--- a/api/tests/test_models_part_01_03.py
+++ b/api/tests/test_models_part_01_03.py
@@ -8,7 +8,7 @@ from pydbml.classes import Table as DbmlTable
 from sqlalchemy import Table, inspect, text
 from sqlalchemy.dialects import postgresql
 from sqlalchemy.exc import IntegrityError
-from sqlalchemy.ext.asyncio import create_async_engine
+from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
 from sqlalchemy.schema import CreateIndex, CreateTable
 
 from src.models import Base
@@ -175,7 +175,7 @@ async def test_create_all_on_scratch_db(scratch_db_url: str) -> None:
         await engine.dispose()
 
 
-async def _check_related_group_member_uniqueness(engine) -> None:  # type: ignore[no-untyped-def]
+async def _check_related_group_member_uniqueness(engine: AsyncEngine) -> None:
     """ЮЛ — только в одной ГСК/ГСЗ среди текущих; закрытая версия не мешает (ТЗ 6.1, ANL-030)."""
     now = datetime.datetime.now(datetime.UTC)
     ids = {k: uuid.uuid4() for k in ("ro", "cg", "le", "g1", "g2", "m1", "m2", "m3")}