diff --git a/bumper/__main__.py b/bumper/__main__.py
index 3d89911..a5a5c1a 100644
--- a/bumper/__main__.py
+++ b/bumper/__main__.py
@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+"""Main module."""
+
 import bumper
 
 if __name__ == "__main__":
diff --git a/bumper/web/auth_util.py b/bumper/web/auth_util.py
index 596f6f3..8904d93 100644
--- a/bumper/web/auth_util.py
+++ b/bumper/web/auth_util.py
@@ -36,6 +36,7 @@ _logger = get_logger("confserver")
 
 
 def generate_token(user):
+    """Generate token."""
     try:
         tmpaccesstoken = uuid.uuid4().hex
         user_add_token(user["userid"], tmpaccesstoken)
@@ -46,6 +47,7 @@ def generate_token(user):
 
 
 def generate_authcode(user, countrycode, token):
+    """Generate auth token."""
     try:
         tmpauthcode = f"{countrycode}_{uuid.uuid4().hex}"
         user_add_authcode(user["userid"], token, tmpauthcode)
@@ -56,6 +58,7 @@ def generate_authcode(user, countrycode, token):
 
 
 async def login(request):
+    """Perform login."""
     try:
         user_devid = request.match_info.get("devid", "")
         countrycode = request.match_info.get("country", "us")
@@ -124,6 +127,7 @@ async def login(request):
 
 
 async def get_authcode(request: Request) -> Response:
+    """Get auth code."""
     try:
         user_devid = request.match_info.get("devid", None)  # Ecovacs
         if not user_devid:
diff --git a/bumper/web/server.py b/bumper/web/server.py
index dc4a582..fe6aa68 100644
--- a/bumper/web/server.py
+++ b/bumper/web/server.py
@@ -6,7 +6,6 @@ import json
 import logging
 import os
 import ssl
-from typing import Union
 
 import aiohttp_jinja2
 import jinja2
diff --git a/requirements.txt b/requirements.txt
index fa3e80e..1240c5b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 aiohttp==3.8.1
 aiohttp-jinja2==1.5
-git+https://github.com/Yakifo/amqtt@master#amqtt==11.0.0
 cachetools==5.1.0
+git+https://github.com/Yakifo/amqtt@master#amqtt==11.0.0
 gmqtt==0.6.11
 Jinja2==3.1.2
 tinydb==4.7.0