diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6a4bd48..551e47d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,6 +24,7 @@ jobs:
           - '3.10'
           - '3.11'
           - '3.12'
+          - '3.13'
           - 'pypy-3.8'
           - 'pypy-3.9'
           - 'pypy-3.10'
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2d3484d..b4768ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
 v1.5.0 (in development)
 -----------------------
 - Drop support for Python 3.6 and 3.7
-- Support Python 3.11 and 3.12
+- Support Python 3.11, 3.12, and 3.13
 - Moved to wheelodex organization
 - Migrated from setuptools to hatch
 
diff --git a/pyproject.toml b/pyproject.toml
index 1a5923e..300ea0a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,6 +29,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
     "License :: OSI Approved :: MIT License",
diff --git a/tox.ini b/tox.ini
index 7fff879..f2c6cc9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = lint,typing,py38,py39,py310,py311,py312,pypy3
+envlist = lint,typing,py38,py39,py310,py311,py312,py313,pypy3
 skip_missing_interpreters = True
 isolated_build = True
 minversion = 3.3.0