diff --git a/Casks/emacs-app-nightly/meta.json b/Casks/emacs-app-nightly/meta.json
index f88f8b53..11f15bb7 100644
--- a/Casks/emacs-app-nightly/meta.json
+++ b/Casks/emacs-app-nightly/meta.json
@@ -7,13 +7,13 @@
   ],
   "desc": "GNU Emacs text editor (nightly build)",
   "homepage": "https://github.com/jimeh/emacs-builds",
-  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2021-10-25.d8caa3d.master/Emacs.2021-10-25.d8caa3d.master.macOS-10-15.x86_64.dmg",
+  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2021-10-27.79c29ff.master/Emacs.2021-10-27.79c29ff.master.macOS-10-15.x86_64.dmg",
   "appcast": null,
-  "version": "2021-10-25.d8caa3d.master",
+  "version": "2021-10-27.79c29ff.master",
   "versions": {},
   "installed": null,
   "outdated": false,
-  "sha256": "1855b5b9a44b459df3d11f0a07646b3dedbc1f0b33c7fbdc42a9085e838bf709",
+  "sha256": "947b195cc6c80933c7413db2d3c75617e257f7e08c1920f79464601eca5c43a2",
   "artifacts": [
     [
       "Emacs.app"
diff --git a/Casks/emacs-app-nightly/shield.json b/Casks/emacs-app-nightly/shield.json
index afdae9f3..aad6259c 100644
--- a/Casks/emacs-app-nightly/shield.json
+++ b/Casks/emacs-app-nightly/shield.json
@@ -5,5 +5,5 @@
   "namedLogo": "GNU Emacs",
   "logoColor": "white",
   "label": "nightly",
-  "message": "2021-10-25.d8caa3d.master"
+  "message": "2021-10-27.79c29ff.master"
 }