diff --git a/Casks/emacs-app-nightly/meta.json b/Casks/emacs-app-nightly/meta.json
index 7d5f37eb..2b10f862 100644
--- a/Casks/emacs-app-nightly/meta.json
+++ b/Casks/emacs-app-nightly/meta.json
@@ -7,12 +7,12 @@
   ],
   "desc": "GNU Emacs text editor (nightly build)",
   "homepage": "https://github.com/jimeh/emacs-builds",
-  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2021-08-13.254dc6a.master/Emacs.2021-08-13.254dc6a.master.macOS-10-15.x86_64.dmg",
+  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2021-08-14.31ab12e.master/Emacs.2021-08-14.31ab12e.master.macOS-10-15.x86_64.dmg",
   "appcast": null,
-  "version": "2021-08-13.254dc6a.master",
+  "version": "2021-08-14.31ab12e.master",
   "installed": null,
   "outdated": false,
-  "sha256": "9add2e24875317488d4452ddbb8367c503271ec24bf2d7d65d854f79b60580f1",
+  "sha256": "538a288697dbfcb2277aeb23450d936eec6baa22153d24e610a6d31a775da503",
   "artifacts": [
     [
       "Emacs.app"
diff --git a/Casks/emacs-app-nightly/shield.json b/Casks/emacs-app-nightly/shield.json
index bef13ac8..3cb7bfc6 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": "2021-08-13.254dc6a.master"
+  "message": "2021-08-14.31ab12e.master"
 }