diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index cb33817..445acf1 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -21,9 +21,9 @@ jobs:
       CIBW_ARCHS_MACOS: "x86_64 universal2"
       # Skip
       #
-      # * Python 3.6 on all platforms,
+      # * Python 3.6 and 3.7 on all platforms,
       # * PyPy on Windows.
-      CIBW_SKIP: cp36-* pp*-win_amd64
+      CIBW_SKIP: cp36-* cp37-* pp*-win_amd64
     steps:
       - uses: actions/checkout@v2
         with:
diff --git a/setup.py b/setup.py
index 98bc385..5f9bae9 100644
--- a/setup.py
+++ b/setup.py
@@ -130,6 +130,7 @@ def run(self):
     include_package_data=True,
     ext_modules=extensions,
     setup_requires=["setuptools_scm"] + wheel,
+    python_requires=">=3.8",
     cmdclass={"build_ext": cython_build_ext, "sdist": cython_sdist},
     zip_safe=False,
 )
diff --git a/tox.ini b/tox.ini
index b5b7409..9f39329 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 project_name = openstep_plist
-envlist = py{27,37}-cov,coverage
+envlist = py{38,39,310,311,312}-cov,coverage
 minversion = 3.4.0
 isolated_build = true
 skip_missing_interpreters = true