diff --git a/Casks/emacs-app-nightly-29.rb b/Casks/emacs-app-nightly-29.rb
index 4469cdff..7f36e8b3 100644
--- a/Casks/emacs-app-nightly-29.rb
+++ b/Casks/emacs-app-nightly-29.rb
@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
 cask 'emacs-app-nightly-29' do
-  version '2023-10-20.b99d12c.emacs-29'
+  version '2023-10-21.ee043a2.emacs-29'
 
-  sha256 '94d65bf2e8c970a53b3ab5e417d715f390e68eb10af2e745826ef0fc55bc7032'
-  url 'https://github.com/jimeh/emacs-builds/releases/download/Emacs.2023-10-20.b99d12c.emacs-29/Emacs.2023-10-20.b99d12c.emacs-29.macOS-11.x86_64.dmg'
+  sha256 '6987d1a009f4b4752ec41649416fa5b8218879a4cf97747f4db85af40f91a2de'
+  url 'https://github.com/jimeh/emacs-builds/releases/download/Emacs.2023-10-21.ee043a2.emacs-29/Emacs.2023-10-21.ee043a2.emacs-29.macOS-11.x86_64.dmg'
 
   name 'Emacs'
   desc 'GNU Emacs text editor (nightly build of emacs-29 branch)'