diff --git a/Chapter09/requirements.txt b/Chapter09/requirements.txt
index cf770dc..fc4de1c 100644
--- a/Chapter09/requirements.txt
+++ b/Chapter09/requirements.txt
@@ -1,4 +1,4 @@
-aiohttp==3.8.4
+aiohttp==3.8.5
 aiosignal==1.3.1
 anyio==3.6.2
 appdirs==1.4.4