diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index 9d56b13bb..18a55f38c 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v4.0.0
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.11"
+          python-version: "3.13"
       - run: python -m pip install --upgrade pip
       - run: python -m pip install tox
       - run: python -m tox -e mypy-test
@@ -24,7 +24,7 @@ jobs:
       - uses: actions/checkout@v4.0.0
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.11"
+          python-version: "3.13"
       - run: pip install tox
       - run: tox -e docs
   tests:
@@ -35,7 +35,7 @@ jobs:
       matrix:
         include:
           - { name: "3.9", python: "3.9", tox: py39 }
-          - { name: "3.12", python: "3.12", tox: py312 }
+          - { name: "3.13", python: "3.13", tox: py313 }
     steps:
       - uses: actions/checkout@v4.0.0
       - uses: actions/setup-python@v5
diff --git a/pyproject.toml b/pyproject.toml
index bbef97df8..f277b56c8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,6 +19,7 @@ classifiers = [
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
 ]
 requires-python = ">=3.9"
 dependencies = ["packaging>=17.0"]
diff --git a/tox.ini b/tox.ini
index ac8d64d52..526cb0be3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = lint,mypy-test,py{39,310,311,312},docs
+envlist = lint,mypy-test,py{39,310,311,312,313},docs
 
 [testenv]
 extras = tests