diff --git a/Casks/emacs-app-nightly.rb b/Casks/emacs-app-nightly.rb
index 3a3fef34..9db8c579 100644
--- a/Casks/emacs-app-nightly.rb
+++ b/Casks/emacs-app-nightly.rb
@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
 cask 'emacs-app-nightly' do
-  version '2021-11-20.64fc94b.master'
+  version '2021-11-21.73754bc.master'
 
-  sha256 '0c3f20f9dd73ae593ba3c3bbfbe71d31a2aaa55719423e2fb24fcd03a3bf6400'
-  url 'https://github.com/jimeh/emacs-builds/releases/download/Emacs.2021-11-20.64fc94b.master/Emacs.2021-11-20.64fc94b.master.macOS-10-15.x86_64.dmg'
+  sha256 'dec28415bb4aab591efb5aa66c7d120f0377a23b53a15ed373584de5c29bfce1'
+  url 'https://github.com/jimeh/emacs-builds/releases/download/Emacs.2021-11-21.73754bc.master/Emacs.2021-11-21.73754bc.master.macOS-10-15.x86_64.dmg'
 
   name 'Emacs'
   desc 'GNU Emacs text editor (nightly build)'