diff --git a/Casks/emacs-app-nightly/meta.json b/Casks/emacs-app-nightly/meta.json
index 8acf830b..db5fe3c1 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.2021-09-03.b66d461.master/Emacs.2021-09-03.b66d461.master.macOS-10-15.x86_64.dmg",
+  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2021-09-04.1d36043.master/Emacs.2021-09-04.1d36043.master.macOS-10-15.x86_64.dmg",
   "appcast": null,
-  "version": "2021-09-03.b66d461.master",
+  "version": "2021-09-04.1d36043.master",
   "versions": {},
   "installed": null,
   "outdated": false,
-  "sha256": "8853884e8ba09195b145f727679395b8038fad810a2b578e9f973873f8f5317b",
+  "sha256": "7897bbc0ddc424e82c3749cd61f32fae0859c298fb01a82bac22eee07460ae96",
   "artifacts": [
     [
       "Emacs.app"
diff --git a/Casks/emacs-app-nightly/shield.json b/Casks/emacs-app-nightly/shield.json
index 18625150..5fc5fa60 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": "2021-09-03.b66d461.master"
+  "message": "2021-09-04.1d36043.master"
 }