diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4c73f77a..8f58efd8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+## [2024.21]
+
 ### Fixed
 
 -   Added missing trailing slash when copying files in `Dockerfile`.
@@ -325,7 +327,7 @@ Initial release! 🎉
 
 -   Josh Thomas <josh@joshthomas.dev> (maintainer)
 
-[unreleased]: https://github.com/westerveltco/django-twc-project/compare/v2024.20...HEAD
+[unreleased]: https://github.com/westerveltco/django-twc-project/compare/v2024.21...HEAD
 [2024.1]: https://github.com/westerveltco/django-twc-project/releases/tag/v2024.1
 [2024.2]: https://github.com/westerveltco/django-twc-project/releases/tag/v2024.2
 [2024.3]: https://github.com/westerveltco/django-twc-project/releases/tag/v2024.3
@@ -346,3 +348,4 @@ Initial release! 🎉
 [2024.18]: https://github.com/westerveltco/django-twc-project/releases/tag/v2024.18
 [2024.19]: https://github.com/westerveltco/django-twc-project/releases/tag/v2024.19
 [2024.20]: https://github.com/westerveltco/django-twc-project/releases/tag/v2024.20
+[2024.21]: https://github.com/westerveltco/django-twc-project/releases/tag/v2024.21
diff --git a/VERSION b/VERSION
index e38fe118..28c13eb7 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2024.20
+2024.21
diff --git a/copier.yml b/copier.yml
index 537e0b71..55e329bb 100644
--- a/copier.yml
+++ b/copier.yml
@@ -13,7 +13,7 @@ _secret_questions:
 _subdirectory: src/django_twc_project
 
 template_version:
-  default: "2024.20"
+  default: "2024.21"
   when: false
 
 # ----------------------------------------------------------------------
diff --git a/examples/default/.copier/project.yml b/examples/default/.copier/project.yml
index cc704e86..79a98d86 100644
--- a/examples/default/.copier/project.yml
+++ b/examples/default/.copier/project.yml
@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier; NEVER EDIT MANUALLY
-_commit: fed8045
+_commit: v2024.20-5-gad6c2a6
 _src_path: .
 admin_email: admin@example.com
 author_name: John Doe
diff --git a/examples/default/default/settings.py b/examples/default/default/settings.py
index d9219996..67be112d 100644
--- a/examples/default/default/settings.py
+++ b/examples/default/default/settings.py
@@ -229,7 +229,7 @@
 
 SECRET_KEY = env.str(
     "SECRET_KEY",
-    default="24ac866a13b42d669f3c1aa8ab734d29a57466f0a0a4c9d017d9d1258fbf4b62",
+    default="86eb53055296ec8d75634e505b3f2e49348cb35a45ff9aef4931f72f93cfbd5d",
 )
 
 SECURE_HSTS_INCLUDE_SUBDOMAINS = not DEBUG
diff --git a/examples/postgis/.copier/project.yml b/examples/postgis/.copier/project.yml
index 382d6e8a..8a583310 100644
--- a/examples/postgis/.copier/project.yml
+++ b/examples/postgis/.copier/project.yml
@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier; NEVER EDIT MANUALLY
-_commit: '6743112'
+_commit: v2024.20-5-g4ebefcc
 _src_path: .
 admin_email: admin@example.com
 author_name: John Doe
diff --git a/examples/postgis/default/settings.py b/examples/postgis/default/settings.py
index 8aa4e12f..5b19a347 100644
--- a/examples/postgis/default/settings.py
+++ b/examples/postgis/default/settings.py
@@ -229,7 +229,7 @@
 
 SECRET_KEY = env.str(
     "SECRET_KEY",
-    default="2912bf5483af8062923a8dd2ffe513067c57a22fa8d45c3a5378fd71a793ce08",
+    default="8ac3a3a51bc27a216d05e4b535e0218c4b9796f0dc69020543bc5536d55ed25d",
 )
 
 SECURE_HSTS_INCLUDE_SUBDOMAINS = not DEBUG
diff --git a/examples/with_vite/.copier/project.yml b/examples/with_vite/.copier/project.yml
index 5483dd13..99314698 100644
--- a/examples/with_vite/.copier/project.yml
+++ b/examples/with_vite/.copier/project.yml
@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier; NEVER EDIT MANUALLY
-_commit: '2875674'
+_commit: v2024.20-5-g2265584
 _src_path: .
 admin_email: admin@example.com
 author_name: John Doe
diff --git a/examples/with_vite/with_vite/settings.py b/examples/with_vite/with_vite/settings.py
index 7cba8c6e..46627614 100644
--- a/examples/with_vite/with_vite/settings.py
+++ b/examples/with_vite/with_vite/settings.py
@@ -230,7 +230,7 @@
 
 SECRET_KEY = env.str(
     "SECRET_KEY",
-    default="2e1400a5f5a7c9b0448ee7d2e66951335f09d8df7b40c67994f3de2c076b3b47",
+    default="0e3db3f19bc2839b9e92bb9bb74e82f13501480fed3e86d7917abfcd5cac7461",
 )
 
 SECURE_HSTS_INCLUDE_SUBDOMAINS = not DEBUG
diff --git a/pyproject.toml b/pyproject.toml
index 01c6aba8..ed3c161f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ requires-python = ">= 3.8"
 [tool.bumpver]
 commit = true
 commit_message = ":bookmark: bump version {old_version} -> {new_version}"
-current_version = "2024.20"
+current_version = "2024.21"
 push = false  # set to false for CI
 tag = false
 version_pattern = "YYYY.INC1"
diff --git a/tests/test_version.py b/tests/test_version.py
index a7bc8eee..38b1ba35 100644
--- a/tests/test_version.py
+++ b/tests/test_version.py
@@ -10,4 +10,4 @@ def test_VERSION_version():
     with open(file, encoding="utf-8") as f:
         version = f.read().strip()
 
-    assert version == "2024.20"
+    assert version == "2024.21"