diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 76dac05..5279ee9 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -68,7 +68,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['pypy3.9', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['pypy3.9', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
         sphinx-version: ['>=5,<6', '>=6a0,<7', '>=7,<8', '>=8,<9']
         os: [windows-latest, macos-latest, ubuntu-latest]
         exclude:
@@ -78,6 +78,8 @@ jobs:
             sphinx-version: '>=8,<9'
           - python-version: 'pypy3.9'
             sphinx-version: '>=8,<9'
+          - python-version: '3.13'
+            sphinx-version: '>=5,<6'
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
diff --git a/setup.py b/setup.py
index be81e0d..dcc17ee 100644
--- a/setup.py
+++ b/setup.py
@@ -32,6 +32,7 @@
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         "Programming Language :: Python",
         "Topic :: Documentation :: Sphinx",
         "Topic :: Documentation",