diff --git a/kaehmy/tgbot.py b/kaehmy/tgbot.py
index 4d376d4..48e1e1a 100644
--- a/kaehmy/tgbot.py
+++ b/kaehmy/tgbot.py
@@ -2,8 +2,8 @@
 A telegram bot api for whatever purposes.
 TODO: kaehmy app is definitely not correct place for this
 '''
-import requests
 import logging
+import requests
 from django.conf import settings
 from kaehmy.models import TelegramChannel
 
@@ -17,7 +17,7 @@ class TelegramBot:
     def __init__(self, api_token=None):
 
         self.api_token = api_token or settings.TELEGRAM_BOT_TOKEN
-        self.send_message_url = f'https://api.telegram.org/bot{self.api_token}/sendMessage'
+        self.send_message_url = "https://api.telegram.org/bot{}/sendMessage".format(self.api_token)
 
     def broadcast(self, message):
         channels_ids = TelegramChannel.objects.values_list("channel_id", flat=True)