diff --git a/backend/app/main.py b/backend/app/main.py
index 2272ae5..2164464 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -1,12 +1,12 @@
-from fastapi import FastAPI, Depends
+from contextlib import asynccontextmanager
+
+from fastapi import Depends, FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
+from .middleware.authenticate import authenticate
 from .providers.db_provider import create_db_and_tables
 from .routers.houses import router as houses_router
 from .routers.owners import router as owners_router
-from .middleware.authenticate import authenticate
-
-from contextlib import asynccontextmanager
 
 
 @asynccontextmanager
diff --git a/backend/app/middleware/authenticate.py b/backend/app/middleware/authenticate.py
index c4b0592..4dc1ea6 100644
--- a/backend/app/middleware/authenticate.py
+++ b/backend/app/middleware/authenticate.py
@@ -1,7 +1,9 @@
-from fastapi import Request, Depends
 from typing import Annotated
-from ..settings import get_settings
+
+from fastapi import Depends, Request
+
 from ..repositories.user_repository import UserRepository
+from ..settings import get_settings
 
 
 async def authenticate(
diff --git a/backend/app/models/house.py b/backend/app/models/house.py
index b37da38..9bd08df 100644
--- a/backend/app/models/house.py
+++ b/backend/app/models/house.py
@@ -1,5 +1,6 @@
-from sqlmodel import SQLModel, Field
-from uuid import uuid4, UUID
+from uuid import UUID, uuid4
+
+from sqlmodel import Field, SQLModel
 
 
 class House(SQLModel, table=True):
diff --git a/backend/app/models/owner.py b/backend/app/models/owner.py
index 6c54884..a2200b1 100644
--- a/backend/app/models/owner.py
+++ b/backend/app/models/owner.py
@@ -1,5 +1,6 @@
-from sqlmodel import SQLModel, Field
-from uuid import uuid4, UUID
+from uuid import UUID, uuid4
+
+from sqlmodel import Field, SQLModel
 
 
 class Owner(SQLModel, table=True):
diff --git a/backend/app/models/user.py b/backend/app/models/user.py
index 929e744..8692ddd 100644
--- a/backend/app/models/user.py
+++ b/backend/app/models/user.py
@@ -1,5 +1,6 @@
-from sqlmodel import SQLModel, Field
-from uuid import uuid4, UUID
+from uuid import UUID, uuid4
+
+from sqlmodel import Field, SQLModel
 
 
 class User(SQLModel, table=True):
diff --git a/backend/app/providers/auth_provider.py b/backend/app/providers/auth_provider.py
index 3e4c5c1..a2b0e89 100644
--- a/backend/app/providers/auth_provider.py
+++ b/backend/app/providers/auth_provider.py
@@ -1,11 +1,9 @@
+from fastapi import Request
+
 from ..errors.not_authenticated import NotAuthenticatedError
 from ..models.user import User
 from ..settings import get_settings
 
-from ..repositories.user_repository import UserRepository
-from typing import Annotated
-from fastapi import Depends, Request
-
 
 class AuthContext:
     """
diff --git a/backend/app/providers/db_provider.py b/backend/app/providers/db_provider.py
index fa64ff2..9ea4108 100644
--- a/backend/app/providers/db_provider.py
+++ b/backend/app/providers/db_provider.py
@@ -1,18 +1,13 @@
 from collections.abc import AsyncGenerator
 from contextlib import asynccontextmanager
+
 from sqlalchemy import Engine
-from sqlalchemy.ext.asyncio import (
-    AsyncConnection,
-    AsyncEngine,
-    AsyncSession,
-    async_sessionmaker,
-    create_async_engine,
-)
-from sqlmodel import create_engine, SQLModel
+from sqlalchemy.ext.asyncio import (AsyncConnection, AsyncEngine, AsyncSession,
+                                    async_sessionmaker, create_async_engine)
 from sqlalchemy.orm import Session
+from sqlmodel import SQLModel, create_engine
 
 from ..models.user import User
-
 from ..settings import get_settings
 
 settings = get_settings()
diff --git a/backend/app/repositories/house_repository.py b/backend/app/repositories/house_repository.py
index bc7855d..65d06e2 100644
--- a/backend/app/repositories/house_repository.py
+++ b/backend/app/repositories/house_repository.py
@@ -1,11 +1,12 @@
-from sqlalchemy.ext.asyncio.session import AsyncSession
 from typing import Annotated
+from uuid import UUID
+
 from fastapi import Depends
-from ..providers.db_provider import get_session
-from ..models.house import House
+from sqlalchemy.ext.asyncio.session import AsyncSession
 from sqlmodel import select
 
-from uuid import UUID
+from ..models.house import House
+from ..providers.db_provider import get_session
 
 
 class HouseRepository:
diff --git a/backend/app/repositories/user_repository.py b/backend/app/repositories/user_repository.py
index 28351a4..6306f77 100644
--- a/backend/app/repositories/user_repository.py
+++ b/backend/app/repositories/user_repository.py
@@ -1,11 +1,12 @@
-from sqlalchemy.ext.asyncio.session import AsyncSession
 from typing import Annotated
+from uuid import UUID
+
 from fastapi import Depends
-from ..providers.db_provider import get_session
-from ..models.user import User
+from sqlalchemy.ext.asyncio.session import AsyncSession
 from sqlmodel import select
 
-from uuid import UUID
+from ..models.user import User
+from ..providers.db_provider import get_session
 
 
 class UserRepository:
diff --git a/backend/app/routers/owners.py b/backend/app/routers/owners.py
index b88b7e3..9eb9b98 100644
--- a/backend/app/routers/owners.py
+++ b/backend/app/routers/owners.py
@@ -1,11 +1,12 @@
-from fastapi import APIRouter, Depends
 from typing import Annotated
+
+from fastapi import APIRouter, Depends
+
+from ..dtos.owner_detail_response import OwnerDetailResponse
+from ..dtos.owner_list_response import OwnerListResponse, OwnerResponse
 from ..repositories.owner_repository import OwnerRepository
 from ..repositories.user_repository import UserRepository
 
-from ..dtos.owner_list_response import OwnerListResponse, OwnerResponse
-from ..dtos.owner_detail_response import OwnerDetailResponse
-
 router = APIRouter()
 
 
diff --git a/backend/app/services/house_price_predictor.py b/backend/app/services/house_price_predictor.py
index b6c66f7..bb23d33 100644
--- a/backend/app/services/house_price_predictor.py
+++ b/backend/app/services/house_price_predictor.py
@@ -1,6 +1,6 @@
 import random
-from typing import List
 from dataclasses import dataclass
+from typing import List
 
 
 @dataclass
diff --git a/backend/app/settings.py b/backend/app/settings.py
index c6cd66d..887d7e1 100644
--- a/backend/app/settings.py
+++ b/backend/app/settings.py
@@ -1,11 +1,10 @@
+import os
 from functools import lru_cache
 
+from dotenv import load_dotenv
 from pydantic import Field
 from pydantic_settings import BaseSettings
 
-from dotenv import load_dotenv
-import os
-
 load_dotenv()