fixes slack link issue firstcontributions#78805 (firstcontributions#7…

…8817)

Co-authored-by: Avinash <[email protected]>

README.md

@@ -198,7 +198,7 @@ Congrats! You just completed the standard _fork -> clone -> edit -> pull request
 
 Celebrate your contribution and share it with your friends and followers by going to [web app](https://firstcontributions.github.io/#social-share).
 
-You could join our slack team if you need any help or have any questions. [Join slack team](https://join.slack.com/t/firstcontributors/shared_invite/zt-1n4y7xnk0-DnLVTaN6U9xLU79H5Hi62w).
+You could join our slack team if you need any help or have any questions. [Join slack team](https://firstcontributors.slack.com/join/shared_invite/zt-29qhyr9lt-Bi7WLbgGIFqV7aCEG_grvg#/shared-invite/email).
 
 Now let's get you started with contributing to other projects. We've compiled a list of projects with easy issues you can get started on. Check out [the list of projects in the web app](https://firstcontributions.github.io/#project-list).