diff --git a/pkgs/applications/networking/instant-messengers/slack/default.nix b/pkgs/applications/networking/instant-messengers/slack/default.nix
index 8037f68c8d1..32f50b6fd63 100644
--- a/pkgs/applications/networking/instant-messengers/slack/default.nix
+++ b/pkgs/applications/networking/instant-messengers/slack/default.nix
@@ -6,7 +6,7 @@ at-spi2-atk, at-spi2-core, libuuid, nodePackages, libpulseaudio, xdg_utils
 
 let
 
-  version = "4.3.3";
+  version = "4.2.0";
 
   inherit (stdenv.hostPlatform) system;