diff --git a/pkgs/by-name/sl/slack/sources.nix b/pkgs/by-name/sl/slack/sources.nix
index 7071e28703d2..ec2f086eb4e0 100644
--- a/pkgs/by-name/sl/slack/sources.nix
+++ b/pkgs/by-name/sl/slack/sources.nix
@@ -1,26 +1,26 @@
 # Generated by ./update.sh - do not update manually!
-# Last updated: 2025-11-14
+# Last updated: 2025-12-15
 { fetchurl }:
 {
   aarch64-darwin = {
-    version = "4.47.59";
+    version = "4.47.72";
     src = fetchurl {
-      url = "https://downloads.slack-edge.com/desktop-releases/mac/arm64/4.47.59/Slack-4.47.59-macOS.dmg";
-      hash = "sha256-q6rNYr2wCN/a50fCZMxNiM2R7PKC+DBxJ5KJy9Wnb/Y=";
+      url = "https://downloads.slack-edge.com/desktop-releases/mac/arm64/4.47.72/Slack-4.47.72-macOS.dmg";
+      hash = "sha256-AihMQAjMMRWJftQOp9gnIC/df8nnrKnkpRym8sdtUkA=";
     };
   };
   x86_64-darwin = {
-    version = "4.47.59";
+    version = "4.47.72";
     src = fetchurl {
-      url = "https://downloads.slack-edge.com/desktop-releases/mac/x64/4.47.59/Slack-4.47.59-macOS.dmg";
-      hash = "sha256-CIESzdXIHeDelIos7ZW9Z2/mnrltk7o92oqS1yM2MnY=";
+      url = "https://downloads.slack-edge.com/desktop-releases/mac/x64/4.47.72/Slack-4.47.72-macOS.dmg";
+      hash = "sha256-H1Dqtlqz1FxDqq4iAZJsTkugLp+WVU9fKB+H19l+vug=";
     };
   };
   x86_64-linux = {
-    version = "4.47.59";
+    version = "4.47.72";
     src = fetchurl {
-      url = "https://downloads.slack-edge.com/desktop-releases/linux/x64/4.47.59/slack-desktop-4.47.59-amd64.deb";
-      hash = "sha256-R+WmtvIw6FLqsskG/hOdEdwZgsCZwWprGhbE7/Xpr1s=";
+      url = "https://downloads.slack-edge.com/desktop-releases/linux/x64/4.47.72/slack-desktop-4.47.72-amd64.deb";
+      hash = "sha256-o1WOTBG5u4jL+NGbTEZq+afM2UwUJZ0gtsWKsnsOkvE=";
     };
   };
 }