diff --git a/Casks/emacs-app-good/meta.json b/Casks/emacs-app-good/meta.json
index cc19ebed..3d045981 100644
--- a/Casks/emacs-app-good/meta.json
+++ b/Casks/emacs-app-good/meta.json
@@ -117,7 +117,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "471ca100685b9455b3e792bc43a96a6dac434782",
+  "tap_git_head": "0473b838b3799030b26697453b53cd3315d9a6ad",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app-good.rb",
   "ruby_source_checksum": {
diff --git a/Casks/emacs-app-nightly-28/meta.json b/Casks/emacs-app-nightly-28/meta.json
index 2b472447..68ba7ce2 100644
--- a/Casks/emacs-app-nightly-28/meta.json
+++ b/Casks/emacs-app-nightly-28/meta.json
@@ -117,7 +117,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "471ca100685b9455b3e792bc43a96a6dac434782",
+  "tap_git_head": "0473b838b3799030b26697453b53cd3315d9a6ad",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app-nightly-28.rb",
   "ruby_source_checksum": {
diff --git a/Casks/emacs-app-nightly-29/meta.json b/Casks/emacs-app-nightly-29/meta.json
index 65ec0c3e..217a4180 100644
--- a/Casks/emacs-app-nightly-29/meta.json
+++ b/Casks/emacs-app-nightly-29/meta.json
@@ -117,7 +117,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "471ca100685b9455b3e792bc43a96a6dac434782",
+  "tap_git_head": "0473b838b3799030b26697453b53cd3315d9a6ad",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app-nightly-29.rb",
   "ruby_source_checksum": {
diff --git a/Casks/emacs-app-nightly/meta.json b/Casks/emacs-app-nightly/meta.json
index ebafbe59..501229de 100644
--- a/Casks/emacs-app-nightly/meta.json
+++ b/Casks/emacs-app-nightly/meta.json
@@ -8,13 +8,13 @@
   ],
   "desc": "GNU Emacs text editor (nightly build)",
   "homepage": "https://github.com/jimeh/emacs-builds",
-  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2023-10-20.696411a.master/Emacs.2023-10-20.696411a.master.macOS-11.x86_64.dmg",
+  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2023-10-21.8c15515.master/Emacs.2023-10-21.8c15515.master.macOS-11.x86_64.dmg",
   "url_specs": {},
   "appcast": null,
-  "version": "2023-10-20.696411a.master",
+  "version": "2023-10-21.8c15515.master",
   "installed": null,
   "outdated": false,
-  "sha256": "8eb730d5968cf0fca68388b822fc02c845a7fd22f87eb796e44ed38229cb7d1a",
+  "sha256": "ae9fa5ad7affe1b99af48bbaa64b368d90d47740abb15115c3fce279651a1917",
   "artifacts": [
     {
       "app": [
@@ -117,10 +117,10 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "471ca100685b9455b3e792bc43a96a6dac434782",
+  "tap_git_head": "0473b838b3799030b26697453b53cd3315d9a6ad",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app-nightly.rb",
   "ruby_source_checksum": {
-    "sha256": "982235e429a6f553a5837c0ff71abf10bea81b919b8502736c3a56723124570f"
+    "sha256": "c7e5bb02bf2f5154e23275b85a7eb33bde7b3e3c065fef46e5ce47ac8b6f8c54"
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 }
diff --git a/Casks/emacs-app-nightly/shield.json b/Casks/emacs-app-nightly/shield.json
index 8054c327..91be6e57 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": "2023-10-20.696411a.master"
+  "message": "2023-10-21.8c15515.master"
 }
diff --git a/Casks/emacs-app-pretest/meta.json b/Casks/emacs-app-pretest/meta.json
index 71298023..81005ad9 100644
--- a/Casks/emacs-app-pretest/meta.json
+++ b/Casks/emacs-app-pretest/meta.json
@@ -117,7 +117,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "471ca100685b9455b3e792bc43a96a6dac434782",
+  "tap_git_head": "0473b838b3799030b26697453b53cd3315d9a6ad",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app-pretest.rb",
   "ruby_source_checksum": {
diff --git a/Casks/emacs-app/meta.json b/Casks/emacs-app/meta.json
index 281315b6..3e9f3384 100644
--- a/Casks/emacs-app/meta.json
+++ b/Casks/emacs-app/meta.json
@@ -117,7 +117,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "471ca100685b9455b3e792bc43a96a6dac434782",
+  "tap_git_head": "0473b838b3799030b26697453b53cd3315d9a6ad",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app.rb",
   "ruby_source_checksum": {