diff --git a/src/core/interfaces.py b/src/core/interfaces.py
index e63811a..0468ffc 100644
--- a/src/core/interfaces.py
+++ b/src/core/interfaces.py
@@ -1,15 +1,20 @@
-from typing import Any, Protocol
+from typing import TYPE_CHECKING, Any, Protocol
 
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from src.repository.tasks import TasksRepo
-from src.repository.users import UsersRepo
+if TYPE_CHECKING:
+    from src.repository.tasks import TasksRepo
+    from src.repository.users import UsersRepo
+
+
+class HasId(Protocol):
+    id: Any
 
 
 class IUOWDB(Protocol):
     session: AsyncSession
-    user: UsersRepo
-    task: TasksRepo
+    user: 'UsersRepo'
+    task: 'TasksRepo'
 
     async def __aenter__(self) -> "IUOWDB": ...
 
diff --git a/src/repository/base.py b/src/repository/base.py
index 8115822..cdfd891 100644
--- a/src/repository/base.py
+++ b/src/repository/base.py
@@ -1,11 +1,11 @@
 from typing import Any, Generic, Mapping, Sequence, Type, TypeVar
 
-from sqlalchemy import delete, insert, select
+from sqlalchemy import delete, insert, select, update
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from src.core.database import Base
+from src.core.interfaces import HasId
 
-ModelType = TypeVar("ModelType", bound=Base)
+ModelType = TypeVar("ModelType", bound=HasId)
 
 
 class BaseRepo(Generic[ModelType]):
@@ -44,3 +44,14 @@ class BaseRepo(Generic[ModelType]):
 
     async def delete_one(self, **filter_by) -> None:
         await self.session.execute(delete(self.model).filter_by(**filter_by))
+
+    async def update_one(self, id: int, data: Mapping[str, Any]) -> ModelType:
+        stmt = (
+            update(self.model)
+            .where(self.model.id == id)
+            .values(data)
+            .returning(self.model)
+        )
+        result = await self.session.execute(stmt)
+        model = result.scalar_one()
+        return model
diff --git a/src/services/tasks.py b/src/services/tasks.py
index 19bc499..8d43720 100644
--- a/src/services/tasks.py
+++ b/src/services/tasks.py
@@ -28,7 +28,11 @@ class TaskService(BaseService):
         await self.session.task.delete_one(id=task_id)
         await self.session.commit()
 
-    async def update_task(self, task_id: int, task_data: TaskPATCHRequest, exclude_unset: bool = True):
-        task = await self.session.task.update_one(id=task_id, data=task_data.model_dump(exclude_unset=exclude_unset))
+    async def update_task(
+        self, task_id: int, task_data: TaskPATCHRequest, exclude_unset: bool = True
+    ):
+        task = await self.session.task.update_one(
+            id=task_id, data=task_data.model_dump(exclude_unset=exclude_unset)
+        )
         await self.session.commit()
         return Task.model_validate(task)
diff --git a/tests/conftest.py b/tests/conftest.py
index 6cfaa03..9aaab30 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,4 +1,4 @@
-import json
+
 import pytest
 from httpx import ASGITransport, AsyncClient
 from sqlalchemy import NullPool, insert