diff --git a/README.md b/README.md
index aec1d3d..306bd94 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
 
 Skype conference: http://bit.ly/berlin-ru-it-chat
 
-Slack chat invites http://berlin-ru.herokuapp.com/
+[Slack chat invites](https://slack-files.com/T09S9JDU1-F0HHEG8PK-c9396c730a)
 
 Skype conference woman Berlin  https://join.skype.com/mA676LOZb1Eg