diff --git a/deploy/lambda/slack/slack.py b/deploy/lambda/slack/slack.py
index 4ddd4a64df5ec95e22fb084dc4f821f2f4d1e759..ca37ad5119d9c363a388f884ded651f3db09e420 100644
--- a/deploy/lambda/slack/slack.py
+++ b/deploy/lambda/slack/slack.py
@@ -1,4 +1,7 @@
 #!/usr/bin/python3.8
+
+# code below inspired from https://aws.amazon.com/fr/premiumsupport/knowledge-center/sns-lambda-webhooks-chime-slack-teams/
+
 import urllib3
 import json
 import os