diff --git a/pkgs/applications/networking/instant-messengers/slack/default.nix b/pkgs/applications/networking/instant-messengers/slack/default.nix
index 9f2fee47d8d0..240aebe91753 100644
--- a/pkgs/applications/networking/instant-messengers/slack/default.nix
+++ b/pkgs/applications/networking/instant-messengers/slack/default.nix
@@ -4,7 +4,7 @@
 
 let
 
-  version = "2.2.1";
+  version = "2.3.4";
 
   rpath = stdenv.lib.makeLibraryPath [
     alsaLib
@@ -43,7 +43,7 @@ let
     if stdenv.system == "x86_64-linux" then
       fetchurl {
         url = "https://slack-ssb-updates.global.ssl.fastly.net/linux_releases/slack-desktop-${version}-amd64.deb";
-        sha256 = "1x08bmkanllv3lpi2s722xs7qia8igf6zxzkc3g7vs5jms3mdrad";
+        sha256 = "01kr7maj8f4yinyri7rs4pmzab9cvp48xfqw3ilirx4mvh8mr1fd";
       }
     else
       throw "Slack is not supported on ${stdenv.system}";