Changed to jessie-slim thanks to @tianon

library/rocket.chat

@@ -2,4 +2,4 @@ Maintainers: Rocket.Chat Image Team <[email protected]> (@RocketChat)
 GitRepo: https://github.com/RocketChat/Docker.Official.Image.git
 
 Tags: 0.74.3, 0.74, 0, latest
-GitCommit: 6b8506b677a490bb28fefd7c1b4f2f360ee86c6f
+GitCommit: 1a592ab2c5ca235e6ac2fa265f65d294490c044c