diff --git a/requirements.txt b/requirements.txt
index ec73f0e..6e07db7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 BeautifulSoup4
 telethon
 aiocron
-aiohttp
+aiohttp<=3.6.3
 hachoir
 PyYAML
 Pillow