diff --git a/requirements.txt b/requirements.txt
index 53bf95b..d2b8256 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,4 @@
 pytest
 requests==2.20.0
 wheel==0.24.0
-aiohttp>=3.8.0,<3.9.0
-certifi
+aiohttp>=3.8.0,<3.9.0
\ No newline at end of file
diff --git a/telebot/asyncio_helper.py b/telebot/asyncio_helper.py
index 84837d9..63c1a53 100644
--- a/telebot/asyncio_helper.py
+++ b/telebot/asyncio_helper.py
@@ -1,7 +1,6 @@
 import asyncio # for future uses
 import aiohttp
 from telebot import types
-import ssl, certifi
 
 try:
     import ujson as json
@@ -27,15 +26,14 @@ REQUEST_LIMIT = 50
 
 class SessionManager:
     def __init__(self) -> None:
-        self.ssl_context = ssl.create_default_context(cafile=certifi.where())
         self.session = aiohttp.ClientSession(connector=aiohttp.TCPConnector(
-            limit=REQUEST_LIMIT, ssl=self.ssl_context
+            limit=REQUEST_LIMIT
         ))
 
 
     async def create_session(self):
         self.session = aiohttp.ClientSession(connector=aiohttp.TCPConnector(
-            limit=REQUEST_LIMIT, ssl=self.ssl_context
+            limit=REQUEST_LIMIT
         ))
         return self.session