diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
new file mode 100644
index 0000000..0a8078f
--- /dev/null
+++ b/.github/workflows/tox.yml
@@ -0,0 +1,18 @@
+name: tox
+on: [push, pull_request]
+jobs:
+  tox:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]  # [macos-latest, ubuntu-latest, windows-latest]
+        python: ['3.9', '3.13', 'pypy3.11']  # ['3.9', '3.10', '3.11', '3.12', '3.13', 'pypy3.11']
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
+      - run: pip install --upgrade pip
+      - run: pip install tox
+      - run: tox -e ${{ matrix.python }}-pytest
diff --git a/tox.ini b/tox.ini
index f109b95..126b528 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 # NOTE: when adding Python versions, also update and re-run `./rebuild-circleci-yaml`
-envlist=pypy3-{nose,nose2,pytest3,unit,unit2},py{37,38,39}-{nose,nose2,pytest3,unit,unit2},py{310,311}-{unit,nose2}
+envlist=pypy3-{nose,nose2,pytest,unit,unit2},py{37,38,39}-{nose,nose2,pytest,unit,unit2},py{310,311,312,313}-{unit,nose2,pytest}
 
 [testenv]
 deps=
@@ -10,10 +10,12 @@ deps=
     pytest2: pytest>=2,<3
     pytest3: pytest>=3,<4
     #pytest4: pytest>=4,<5
+    pytest: pytest
     unit2: unittest2
 commands=
     nose: nosetests
     nose2: nose2
+    pytest: pytest parameterized/test.py
     pytest2: py.test parameterized/test.py
     pytest3: py.test parameterized/test.py
     #pytest4: py.test parameterized/test.py