diff --git a/getting-started-tutorial/socless-tutorial/functions/send_message/requirements.txt b/getting-started-tutorial/socless-tutorial/functions/send_message/requirements.txt
index e5704ff..a92d117 100644
--- a/getting-started-tutorial/socless-tutorial/functions/send_message/requirements.txt
+++ b/getting-started-tutorial/socless-tutorial/functions/send_message/requirements.txt
@@ -1 +1,2 @@
 slackclient
+aiohttp>=3.9.4 # not directly required, pinned by Snyk to avoid a vulnerability