diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 470c010..206d3af 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,7 @@ jobs:
       contents: read
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - uses: actions/setup-python@v4
       with:
@@ -52,14 +52,16 @@ jobs:
           "3.9",
           "3.10",
           "3.11",
+          "3.12",
         ]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python }}
+        allow-prereleases: true
 
     - name: Install dependencies
       run: |
diff --git a/setup.py b/setup.py
index 5bd5f0f..259d058 100644
--- a/setup.py
+++ b/setup.py
@@ -21,6 +21,7 @@
     'Programming Language :: Python :: 3.9',
     'Programming Language :: Python :: 3.10',
     'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.12',
     'Topic :: Software Development',
 ]
 
diff --git a/tox.ini b/tox.ini
index b0766b5..d62caa1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 minversion = 2.9.1
 skip_missing_interpreters = true
-envlist = py35, py36, py37, py38, py39, py310, py311
+envlist = py37, py38, py39, py310, py311, py312
 
 [testenv]
 description = run the test driver with {basepython}