diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e7577153..f55b8c71 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -21,6 +21,7 @@ jobs:
           - "3.11"
           - "3.12"
           - "3.13"
+          - "3.14"
 
     steps:
       - name: Checkout source
diff --git a/cookiecutter.json b/cookiecutter.json
index a461cfab..b24c88c9 100644
--- a/cookiecutter.json
+++ b/cookiecutter.json
@@ -9,8 +9,8 @@
   "initialise_git_repository": true,
   "deploy_docs_to_github_pages": true,
   "github_owner": "{{cookiecutter.author_given_names.lower().replace(' ', '-')}}-{{cookiecutter.author_family_names.lower().replace(' ', '-')}}",
-  "min_python_version": ["3.11", "3.12", "3.13"],
-  "max_python_version": ["3.13", "3.12", "3.11"],
+  "min_python_version": ["3.11", "3.12", "3.13", "3.14"],
+  "max_python_version": ["3.14", "3.13", "3.12", "3.11"],
   "license": ["MIT", "BSD-3-Clause", "GPL-3.0"],
   "funder": "",
   "__repo_name": "{{cookiecutter.github_owner}}/{{cookiecutter.project_slug}}",
diff --git a/pyproject.toml b/pyproject.toml
index a1a868ce..2ab54710 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,6 +45,7 @@ env_list = [
     "py311",
     "py312",
     "py313",
+    "py314",
 ]
 env_run_base = {commands = [
     [
@@ -62,4 +63,6 @@ gh.python = {"3.11" = [
     "py312",
 ], "3.13" = [
     "py313",
+], "3.14" = [
+    "py314",
 ]}
diff --git a/tests/data/test_package_generation/.github/workflows/tests.yml b/tests/data/test_package_generation/.github/workflows/tests.yml
index 41f6dbd6..ad72e94e 100644
--- a/tests/data/test_package_generation/.github/workflows/tests.yml
+++ b/tests/data/test_package_generation/.github/workflows/tests.yml
@@ -17,6 +17,7 @@ jobs:
           - "3.11"
           - "3.12"
           - "3.13"
+          - "3.14"
 
     steps:
       - name: Checkout source
diff --git a/tests/data/test_package_generation/README.md b/tests/data/test_package_generation/README.md
index 61661359..a37415bb 100644
--- a/tests/data/test_package_generation/README.md
+++ b/tests/data/test_package_generation/README.md
@@ -49,7 +49,7 @@ Centre for Advanced Research Computing, University College London
 
 <!-- Any tools or versions of languages needed to run code. For example specific Python or Node versions. Minimum hardware requirements also go here. -->
 
-`cookiecutter-test` requires Python 3.11&ndash;3.13.
+`cookiecutter-test` requires Python 3.11&ndash;3.14.
 
 ### Installation
 
diff --git a/tests/data/test_package_generation/pyproject.toml b/tests/data/test_package_generation/pyproject.toml
index bb190c47..5eb5afe2 100644
--- a/tests/data/test_package_generation/pyproject.toml
+++ b/tests/data/test_package_generation/pyproject.toml
@@ -37,6 +37,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Typing :: Typed",
 ]
 dependencies = [
@@ -123,6 +124,7 @@ env_list = [
     "py311",
     "py312",
     "py313",
+    "py314",
 ]
 env_run_base = {commands = [
     [
@@ -145,3 +147,4 @@ env.docs = {commands = [
 gh.python."3.11" = ["py311"]
 gh.python."3.12" = ["py312"]
 gh.python."3.13" = ["py313"]
+gh.python."3.14" = ["py314"]