diff --git a/docs/changelog.md b/docs/changelog.md
index d873b65..6d2368a 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [4.1.0](https://github.com/nhairs/python-json-logger/compare/v4.0.0...v4.1.0) - UNRELEASED
+
+### Added
+- Add support for Python 3.14, PyPy 3.11
+
 ## [4.0.0](https://github.com/nhairs/python-json-logger/compare/v3.3.3...v4.0.0) - 2025-10-06
 
 ### Added
diff --git a/pyproject.toml b/pyproject.toml
index e761276..b2d718c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "python-json-logger"
-version = "4.0.0"
+version = "4.1.0.dev1"
 description = "JSON Log Formatter for the Python Logging Package"
 authors = [
     {name = "Zakaria Zajac", email = "zak@madzak.com"},
@@ -35,6 +35,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Topic :: System :: Logging",
     "Typing :: Typed",
 ]
diff --git a/tox.ini b/tox.ini
index 4304e37..fb2f4c6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 requires = tox>=3,tox-uv
-envlist = py{38,39,310,311,312,313}, pypy{38,39,310}
+envlist = py{38,39,310,311,312,313,314}, pypy{38,39,310,311}
 
 [testenv]
 description = run unit tests