diff --git a/backend/app/api/api_v1/endpoints/bookmarks.py b/backend/app/api/api_v1/endpoints/bookmarks.py
index 74a6a464..bce536a2 100644
--- a/backend/app/api/api_v1/endpoints/bookmarks.py
+++ b/backend/app/api/api_v1/endpoints/bookmarks.py
@@ -4,7 +4,6 @@
 from app import crud, schemas
 from app.api import deps
 from app.api.deps import current_active_superuser, current_active_user
-from app.core import auth
 from app.models.user import User
 
 router = APIRouter()
diff --git a/backend/app/api/api_v1/endpoints/caseinfo.py b/backend/app/api/api_v1/endpoints/caseinfo.py
index 51751432..a28d7089 100644
--- a/backend/app/api/api_v1/endpoints/caseinfo.py
+++ b/backend/app/api/api_v1/endpoints/caseinfo.py
@@ -4,7 +4,6 @@
 from app import crud, schemas
 from app.api import deps
 from app.api.deps import current_active_superuser, current_active_user
-from app.core import auth
 from app.models.user import User
 
 router = APIRouter()
diff --git a/backend/app/api/api_v1/endpoints/utils.py b/backend/app/api/api_v1/endpoints/utils.py
index c4cbed0a..8bc8c132 100644
--- a/backend/app/api/api_v1/endpoints/utils.py
+++ b/backend/app/api/api_v1/endpoints/utils.py
@@ -3,11 +3,9 @@
 from fastapi import APIRouter, Depends
 from pydantic.networks import EmailStr
 
-from app import models, schemas
-from app.api import deps
+from app import schemas
 from app.api.deps import current_active_superuser
 from app.app.utils import send_test_email
-from app.core import auth
 
 router = APIRouter()
 
diff --git a/backend/app/api/deps.py b/backend/app/api/deps.py
index f1cff626..b19e72b9 100644
--- a/backend/app/api/deps.py
+++ b/backend/app/api/deps.py
@@ -1,6 +1,4 @@
-from typing import AsyncGenerator, AsyncIterator
-
-from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker
+from typing import AsyncIterator
 
 from app.core import auth
 from app.db.session import SessionLocal, engine
diff --git a/backend/app/app/utils.py b/backend/app/app/utils.py
index 9cc4ee70..2e42e446 100644
--- a/backend/app/app/utils.py
+++ b/backend/app/app/utils.py
@@ -1,7 +1,6 @@
 import logging
-from datetime import datetime, timedelta
 from pathlib import Path
-from typing import Any, Dict, Optional
+from typing import Any, Dict
 
 import emails
 from emails.template import JinjaTemplate
diff --git a/backend/app/core/auth.py b/backend/app/core/auth.py
index 0991fbdd..5977bba9 100644
--- a/backend/app/core/auth.py
+++ b/backend/app/core/auth.py
@@ -1,9 +1,9 @@
 import uuid
-from typing import Any, Optional
+from typing import Optional
 
 import redis.asyncio
 from fastapi import Depends, Request, Response
-from fastapi_users import BaseUserManager, FastAPIUsers, UUIDIDMixin, models
+from fastapi_users import BaseUserManager, FastAPIUsers, UUIDIDMixin
 from fastapi_users.authentication import (
     AuthenticationBackend,
     BearerTransport,
diff --git a/backend/app/core/config.py b/backend/app/core/config.py
index bc9f75e8..2e7aa7b4 100644
--- a/backend/app/core/config.py
+++ b/backend/app/core/config.py
@@ -1,7 +1,6 @@
 import logging
 import os
 import secrets
-import typing
 from typing import Any
 
 from pydantic import AnyHttpUrl, EmailStr, HttpUrl, PostgresDsn, field_validator
diff --git a/backend/app/core/deps.py b/backend/app/core/deps.py
index d515d918..e55fb48f 100644
--- a/backend/app/core/deps.py
+++ b/backend/app/core/deps.py
@@ -1,9 +1,8 @@
-from typing import AsyncGenerator, AsyncIterator
+from typing import AsyncGenerator
 
 from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker
 
-from app.core import auth
-from app.db.session import SessionLocal, engine
+from app.db.session import engine
 
 async_session_maker = async_sessionmaker(engine, expire_on_commit=False)
 
diff --git a/backend/app/main.py b/backend/app/main.py
index f2fce8cb..4e7d5ada 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -1,8 +1,7 @@
 import logging
 import pathlib
 
-from fastapi import FastAPI, Request
-from fastapi.staticfiles import StaticFiles
+from fastapi import FastAPI
 from starlette.middleware.cors import CORSMiddleware
 from starlette.responses import FileResponse
 
diff --git a/backend/tests/api/api_v1/test_utils.py b/backend/tests/api/api_v1/test_utils.py
index 483fcc53..5aaf8fb9 100644
--- a/backend/tests/api/api_v1/test_utils.py
+++ b/backend/tests/api/api_v1/test_utils.py
@@ -1,10 +1,7 @@
-import uuid
-
 import pytest
 from fastapi.testclient import TestClient
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.app.utils import send_test_email
 from app.core.config import settings
 from app.models.user import User
 
diff --git a/backend/tests/api/internal/test_proxy.py b/backend/tests/api/internal/test_proxy.py
index 4ccb72a1..8de728cf 100644
--- a/backend/tests/api/internal/test_proxy.py
+++ b/backend/tests/api/internal/test_proxy.py
@@ -3,7 +3,6 @@
 from fastapi.testclient import TestClient
 from pytest_httpx._httpx_mock import HTTPXMock
 
-from app.api.internal.endpoints.remote import default_acmg_rating
 from app.core.config import settings
 
 #: Host name to use for the mocked backend.
diff --git a/backend/tests/app/test_utils.py b/backend/tests/app/test_utils.py
index 6fa70e6f..1a795b0a 100644
--- a/backend/tests/app/test_utils.py
+++ b/backend/tests/app/test_utils.py
@@ -1,4 +1,4 @@
-from unittest.mock import MagicMock, mock_open, patch
+from unittest.mock import MagicMock, mock_open
 
 import pytest
 from starlette.requests import Request