diff --git a/legacy/readme.md b/legacy/readme.md
index 6d83f66f..fcf89f20 100644
--- a/legacy/readme.md
+++ b/legacy/readme.md
@@ -263,6 +263,7 @@ All of these awesome projects are built using the `chatgpt` package. 🤯
 - [Slack Bot #1](https://github.com/trietphm/chatgpt-slackbot/)
 - [Slack Bot #2](https://github.com/lokwkin/chatgpt-slackbot-node/) (with queueing mechanism)
 - [Slack Bot #3](https://github.com/NessunKim/slack-chatgpt/)
+- [Slack Bot #4](https://github.com/MarkusGalant/chatgpt-slackbot-serverless/) ( Serverless AWS Lambda )
 - [Electron Bot](https://github.com/ShiranAbir/chaty)
 - [Kodyfire CLI](https://github.com/nooqta/chatgpt-kodyfire)
 - [Twitch Bot](https://github.com/BennyDeeDev/chatgpt-twitch-bot)