diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 234cd35..7d46599 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
       max-parallel: 4
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
diff --git a/noxfile.py b/noxfile.py
index 3339d58..39fbef4 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -5,7 +5,7 @@
 nox.options.keywords = "test + mypy"
 
 
-@nox.session(python=["3.8", "3.9", "3.10", "3.11", "3.12"])
+@nox.session(python=["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"])
 def test(session):
     deps = ["pytest", "pytest-asyncio", "pytest-cov", "trio", "starlette", "flask"]
     session.install("--upgrade", *deps)
diff --git a/setup.py b/setup.py
index e2b6154..b5fec4a 100644
--- a/setup.py
+++ b/setup.py
@@ -28,6 +28,7 @@
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
     ],
     project_urls={
         "GitHub": "https://github.com/lundberg/respx",