diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 0e24a76..0eda5fd 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13.0-rc.2"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/noxfile.py b/noxfile.py
index 6a8412a..0805d75 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -6,7 +6,7 @@
 if TYPE_CHECKING:
     from nox.sessions import Session
 
-python_versions = ["3.8", "3.9", "3.10", "3.11", "3.12"]
+python_versions = ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
 @nox.session(python=python_versions, reuse_venv=True)
 def tests(session: "Session") -> None:
diff --git a/pyproject.toml b/pyproject.toml
index 69a2903..f724ad3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,6 +21,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Typing :: Typed",
 ]