diff --git a/04.underground_chat/requirements.txt b/04.underground_chat/requirements.txt
index f4dbc53..ca0f9c3 100644
--- a/04.underground_chat/requirements.txt
+++ b/04.underground_chat/requirements.txt
@@ -1,3 +1,3 @@
-aiohttp==3.5.4
+aiohttp==3.7.4
 aiofiles==0.4.0
 python-dotenv==0.10.2