diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 72c9f0d2..c1e0ee40 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,6 +33,7 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
+          - "3.13"
           # - "pypy-3.7"
           - "pypy-3.8"
           - "pypy-3.9"
diff --git a/pyproject.toml b/pyproject.toml
index 0bd2c6dd..4a3e5750 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",
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python :: Implementation :: PyPy",
   "Typing :: Typed",
diff --git a/tox.ini b/tox.ini
index 4d8ad70c..df965dfb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,8 +2,8 @@
 min_version = 4
 env_list =
     pre-commit,
-    py3{7,8,9,10,11,12}-tests,
-    py3{8,9,10,11,12}-mypy,
+    py3{7,8,9,10,11,12,13}-tests,
+    py3{8,9,10,11,12,13}-mypy,
     pypy3,
     pyright,
     docs,
@@ -41,7 +41,7 @@ commands = coverage run -m pytest {posargs:-n auto}
 [testenv:coverage-report]
 # Keep base_python in-sync with .python-version-default
 base_python = py312
-depends = py3{7,10,11}
+depends = py3{7,10,12}
 skip_install = true
 deps = coverage[toml]>=5.3
 commands =