diff --git a/rocket.chat/content.md b/rocket.chat/content.md
index c30db3ba7..2c6223e1a 100644
--- a/rocket.chat/content.md
+++ b/rocket.chat/content.md
@@ -11,7 +11,7 @@ It is a great solution for communities and companies wanting to privately host t
 First, start an instance of mongo:
 
 ```console
-$ docker run --name db -d mongo --smallfiles
+$ docker run --name db -d mongo:3.0 --smallfiles
 ```
 
 Then start Rocket.Chat linked to this mongo instance: