diff --git a/src/crud/authentication.py b/src/crud/authentication.py
index 3ec81ec..201e25b 100644
--- a/src/crud/authentication.py
+++ b/src/crud/authentication.py
@@ -7,7 +7,6 @@ from sqlalchemy.orm import Session
 
 from src.crud.users import get_user_by_username, pwd_context
 from src.models import User
-from src.schemas.users import UserCreate
 
 DEFAULT_NR_HIGH_SCORES = 10
 
diff --git a/src/crud/courseprogress.py b/src/crud/courseprogress.py
index 6fb4b38..4818f1e 100644
--- a/src/crud/courseprogress.py
+++ b/src/crud/courseprogress.py
@@ -1,4 +1,3 @@
-from fastapi import HTTPException
 from sqlalchemy.orm import Session
 
 from src.enums import CourseEnum, course_enum_list
diff --git a/src/crud/highscores.py b/src/crud/highscores.py
index 45c397c..5809027 100644
--- a/src/crud/highscores.py
+++ b/src/crud/highscores.py
@@ -7,6 +7,8 @@ from src.models import HighScore, User
 from src.schemas.highscores import HighScoreBase
 from src.schemas.users import UserHighScore
 
+DEFAULT_NR_HIGH_SCORES = 10
+
 
 def get_high_scores(db: Session, minigame: MinigameEnum, nr_highest: int):
     """Get the n highest scores of a given minigame"""
diff --git a/src/main.py b/src/main.py
index e3e0869..29b16f4 100644
--- a/src/main.py
+++ b/src/main.py
@@ -1,7 +1,7 @@
 import sys
 from typing import List, Optional
 
-from fastapi import Depends, FastAPI, HTTPException
+from fastapi import Depends, FastAPI
 from sqlalchemy.orm import Session
 
 sys.path.append("..")
@@ -10,7 +10,7 @@ from src.crud import authentication as crud_authentication
 from src.crud import courseprogress as crud_courseprogress
 from src.crud import highscores as crud_highscores
 from src.crud import users as crud_users
-from src.database import Base, SessionLocal, engine, get_db
+from src.database import Base, engine, get_db
 from src.enums import CourseEnum, MinigameEnum
 from src.schemas import courseprogress, highscores, users
 
@@ -85,7 +85,7 @@ async def get_course_progress(
 
 
 @app.patch("/courseprogress")
-async def get_course_progress(
+async def patch_course_progress(
     course_progress: courseprogress.CourseProgressBase,
     current_user_name: str = Depends(crud_authentication.get_current_user_name),
     db: Session = Depends(get_db),
diff --git a/src/models.py b/src/models.py
index 516d9c6..99a3965 100644
--- a/src/models.py
+++ b/src/models.py
@@ -1,9 +1,7 @@
 from sqlalchemy import Column, Float, ForeignKey, Integer, String
-from sqlalchemy.dialects.postgresql import ARRAY
 from sqlalchemy.orm import relationship
 
 from src.database import Base
-from src.enums import CourseEnum, MinigameEnum, StrEnumType
 
 
 class User(Base):
diff --git a/src/schemas/users.py b/src/schemas/users.py
index 3077af7..d98b5e6 100644
--- a/src/schemas/users.py
+++ b/src/schemas/users.py
@@ -1,5 +1,3 @@
-from typing import List
-
 from pydantic import BaseModel
 
 
diff --git a/tests/config/setup.py b/tests/config/setup.py
index fa49ebe..71466e6 100644
--- a/tests/config/setup.py
+++ b/tests/config/setup.py
@@ -1,10 +1,9 @@
 import sys
 
-sys.path.append("..")
-
 import pytest
 from sqlalchemy import create_engine
-from sqlalchemy.orm import sessionmaker
+
+sys.path.append("..")
 
 from src.database import Base as ProductionBase
 from tests.config.database import (SQLALCHEMY_DATABASE_URL, TestBase,