diff --git a/Casks/emacs-app-good/meta.json b/Casks/emacs-app-good/meta.json
index 83092e2a..d2ad7552 100644
--- a/Casks/emacs-app-good/meta.json
+++ b/Casks/emacs-app-good/meta.json
@@ -13,6 +13,7 @@
   "appcast": null,
   "version": "2023-12-01.eec1142.master",
   "installed": null,
+  "installed_time": null,
   "outdated": false,
   "sha256": "09bbb4e29f6b81a553b2b2dcad74a2be2db4049c36de5409c5436066c37deecd",
   "artifacts": [
@@ -118,7 +119,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "3b49e9ea3c3c502d604f5ae16c5e1182bd908a2b",
+  "tap_git_head": "f8df4f40432cf384433d76af2d08f21f8bfa0b82",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app-good.rb",
   "ruby_source_checksum": {
diff --git a/Casks/emacs-app-monthly/meta.json b/Casks/emacs-app-monthly/meta.json
index c3820eb0..189c16f9 100644
--- a/Casks/emacs-app-monthly/meta.json
+++ b/Casks/emacs-app-monthly/meta.json
@@ -13,6 +13,7 @@
   "appcast": null,
   "version": "2023-12-01.eec1142.master",
   "installed": null,
+  "installed_time": null,
   "outdated": false,
   "sha256": "09bbb4e29f6b81a553b2b2dcad74a2be2db4049c36de5409c5436066c37deecd",
   "artifacts": [
@@ -117,7 +118,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "3b49e9ea3c3c502d604f5ae16c5e1182bd908a2b",
+  "tap_git_head": "f8df4f40432cf384433d76af2d08f21f8bfa0b82",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app-monthly.rb",
   "ruby_source_checksum": {
diff --git a/Casks/emacs-app-nightly-28/meta.json b/Casks/emacs-app-nightly-28/meta.json
index 64310124..f8251353 100644
--- a/Casks/emacs-app-nightly-28/meta.json
+++ b/Casks/emacs-app-nightly-28/meta.json
@@ -13,6 +13,7 @@
   "appcast": null,
   "version": "2022-12-19.ae9bfed.emacs-28",
   "installed": null,
+  "installed_time": null,
   "outdated": false,
   "sha256": "28e611692ed2a09435a3225fa38a550954651cc8f3b116b571bd06b00dce458a",
   "artifacts": [
@@ -118,7 +119,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "3b49e9ea3c3c502d604f5ae16c5e1182bd908a2b",
+  "tap_git_head": "f8df4f40432cf384433d76af2d08f21f8bfa0b82",
   "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 916adccc..a0bcbfac 100644
--- a/Casks/emacs-app-nightly-29/meta.json
+++ b/Casks/emacs-app-nightly-29/meta.json
@@ -13,6 +13,7 @@
   "appcast": null,
   "version": "2023-11-14.5a1808d.emacs-29",
   "installed": null,
+  "installed_time": null,
   "outdated": false,
   "sha256": "5b346a87ef0ba7f6e46d2dbad4253ea0d1d0ecbcf8abba8274c480061cad7784",
   "artifacts": [
@@ -118,7 +119,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "3b49e9ea3c3c502d604f5ae16c5e1182bd908a2b",
+  "tap_git_head": "f8df4f40432cf384433d76af2d08f21f8bfa0b82",
   "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 9ae1a4b1..790685ea 100644
--- a/Casks/emacs-app-nightly/meta.json
+++ b/Casks/emacs-app-nightly/meta.json
@@ -8,13 +8,14 @@
   ],
   "desc": "GNU Emacs text editor (nightly build)",
   "homepage": "https://github.com/jimeh/emacs-builds",
-  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2023-12-14.af1fe69.master/Emacs.2023-12-14.af1fe69.master.macOS-12.x86_64.dmg",
+  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2023-12-15.5b80894.master/Emacs.2023-12-15.5b80894.master.macOS-12.x86_64.dmg",
   "url_specs": {},
   "appcast": null,
-  "version": "2023-12-14.af1fe69.master",
+  "version": "2023-12-15.5b80894.master",
   "installed": null,
+  "installed_time": null,
   "outdated": false,
-  "sha256": "16c9d7543ffcc97184a351a7042586fe47733a55cf757afb515f6d6a37d02412",
+  "sha256": "e125b5aa8e1fd2cdfe0d1357491453d6a691a17bd2a9d1cd084b24c870508a7a",
   "artifacts": [
     {
       "app": [
@@ -118,10 +119,10 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "3b49e9ea3c3c502d604f5ae16c5e1182bd908a2b",
+  "tap_git_head": "f8df4f40432cf384433d76af2d08f21f8bfa0b82",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app-nightly.rb",
   "ruby_source_checksum": {
-    "sha256": "761601c2fd2a5ea678b534a90ee59a7978aa60fe1800060b6b49e5787a90d242"
+    "sha256": "263ffd7bd6f51dee2c76e892938001e1147ca2810f25c6e9615a282decc9c324"
   }
 }
diff --git a/Casks/emacs-app-nightly/shield.json b/Casks/emacs-app-nightly/shield.json
index 1a827c52..a986a7eb 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": "2023-12-14.af1fe69.master"
+  "message": "2023-12-15.5b80894.master"
 }
diff --git a/Casks/emacs-app-pretest/meta.json b/Casks/emacs-app-pretest/meta.json
index 1c7ec678..6ff44072 100644
--- a/Casks/emacs-app-pretest/meta.json
+++ b/Casks/emacs-app-pretest/meta.json
@@ -13,6 +13,7 @@
   "appcast": null,
   "version": "29.1.90-pretest",
   "installed": null,
+  "installed_time": null,
   "outdated": false,
   "sha256": "b0594a29f375e63059344ee7c19641f594921f792e6b1df78d7413042d420f66",
   "artifacts": [
@@ -118,7 +119,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "3b49e9ea3c3c502d604f5ae16c5e1182bd908a2b",
+  "tap_git_head": "f8df4f40432cf384433d76af2d08f21f8bfa0b82",
   "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 be8ddbd2..396e065f 100644
--- a/Casks/emacs-app/meta.json
+++ b/Casks/emacs-app/meta.json
@@ -13,6 +13,7 @@
   "appcast": null,
   "version": "29.1",
   "installed": null,
+  "installed_time": null,
   "outdated": false,
   "sha256": "06975a567a038f557f88d865f438aa838a4da3a1771885b747bcd416cb85c67c",
   "artifacts": [
@@ -118,7 +119,7 @@
   },
   "container": null,
   "auto_updates": null,
-  "tap_git_head": "3b49e9ea3c3c502d604f5ae16c5e1182bd908a2b",
+  "tap_git_head": "f8df4f40432cf384433d76af2d08f21f8bfa0b82",
   "languages": [],
   "ruby_source_path": "Casks/emacs-app.rb",
   "ruby_source_checksum": {