diff --git a/matrix_bot_praying_times/__main__.py b/matrix_bot_praying_times/__main__.py
index 42ea33a..276f707 100644
--- a/matrix_bot_praying_times/__main__.py
+++ b/matrix_bot_praying_times/__main__.py
@@ -3,6 +3,7 @@ import requests
 import datetime
 import asyncio
 import pytz
+from typing import Dict
 import os
 from dotenv import load_dotenv
 
@@ -24,7 +25,7 @@ user_room_ids: dict = {}
 
 
 @bot.listener.on_message_event
-async def echo(room, message):
+async def echo(room, message) -> None:
     match = botlib.MessageMatch(room, message, bot, PREFIX)
 
     if match.is_not_from_this_bot() and match.prefix() and match.command("echo"):
@@ -35,7 +36,7 @@ async def echo(room, message):
 
 
 @bot.listener.on_message_event
-async def times(room, message):
+async def times(room, message) -> None:
     match = botlib.MessageMatch(room, message, bot, PREFIX)
     username = str(message).split(': ')[0]
     response = ""
@@ -53,7 +54,7 @@ async def times(room, message):
 
 
 @bot.listener.on_message_event
-async def usage(room, message):
+async def usage(room, message) -> None:
     match = botlib.MessageMatch(room, message, bot, PREFIX)
 
     response = """usage:
@@ -67,7 +68,7 @@ async def usage(room, message):
 
 
 @bot.listener.on_message_event
-async def set_location(room, message):
+async def set_location(room, message) -> None:
     match = botlib.MessageMatch(room, message, bot, PREFIX)
 
     response = ""
@@ -81,7 +82,7 @@ async def set_location(room, message):
 
 
 @bot.listener.on_message_event
-async def set_reminder(room, message):
+async def set_reminder(room, message) -> None:
     match = botlib.MessageMatch(room, message, bot, PREFIX)
 
     response = ""
@@ -101,7 +102,7 @@ async def set_reminder(room, message):
             await bot.api.send_markdown_message(room.room_id, response)
 
 
-def get_praying_times(date: datetime.date, username):
+def get_praying_times(date: datetime.date, username) -> Dict[str, str]:
     day = date.day
     month = date.month
     year = date.year
@@ -111,7 +112,7 @@ def get_praying_times(date: datetime.date, username):
     return times
 
 
-def schedule_reminder(username):
+def schedule_reminder(username) -> None:
     # TODO: add peristence for reminders
     times = get_praying_times(datetime.date.today(), username)
     now = datetime.datetime.now(datetime.UTC)
@@ -123,7 +124,7 @@ def schedule_reminder(username):
             asyncio.ensure_future(remind(username, message, seconds - user_reminders[username] * 60))
 
 
-async def remind(username, message, seconds):
+async def remind(username, message, seconds) -> None:
     await asyncio.sleep(seconds)
     await bot.api.send_markdown_message(user_room_ids[username], message)