diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index fbece616..ccfdd4b5 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -6,17 +6,16 @@ jobs:
       fail-fast: false
       max-parallel: 4
       matrix:
-        python: [3.7, 3.8, 3.9]
+        python: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python }}
+          cache: pip
+          cache-dependency-path: |
+            tox.ini
+            setup.py
       - run: pip install tox
-      - if: matrix.python == '3.7'
-        run: TOXENV=py37 tox
-      - if: matrix.python == '3.8'
-        run: TOXENV=py38 tox
-      - if: matrix.python == '3.9'
-        run: TOXENV=py39 tox
+      - run: tox -e py
diff --git a/requirements.txt b/requirements.txt
index 3d97aec2..8d961408 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 pylama==7.7.1
-pytest==5.2.2; python_version >= '3.0'
+pytest
 tox==3.14.0
diff --git a/test/paho_test.py b/test/paho_test.py
index 080168b4..5c393842 100644
--- a/test/paho_test.py
+++ b/test/paho_test.py
@@ -34,7 +34,7 @@ def create_server_socket():
     return sock
 
 
-def create_server_socket_ssl(*args, **kwargs):
+def create_server_socket_ssl(cert_reqs=None):
     if ssl is None:
         raise RuntimeError
 
@@ -46,10 +46,13 @@ def create_server_socket_ssl(*args, **kwargs):
 
     sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
     sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
-    ssock = ssl.wrap_socket(
-        sock, ca_certs="../ssl/all-ca.crt",
-        keyfile="../ssl/server.key", certfile="../ssl/server.crt",
-        server_side=True, ssl_version=ssl_version, **kwargs)
+    context = ssl.SSLContext(ssl_version)
+    context.load_verify_locations("../ssl/all-ca.crt")
+    context.load_cert_chain("../ssl/server.crt", "../ssl/server.key")
+    if cert_reqs:
+        context.verify_mode = cert_reqs
+
+    ssock = context.wrap_socket(sock, server_side=True)
     ssock.settimeout(10)
     ssock.bind(('', 1888))
     ssock.listen(5)
diff --git a/tox.ini b/tox.ini
index 5d190e17..25cc72a8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py{37,38,39}
+envlist = py{37,38,39,310,311,312}
 
 [testenv]
 whitelist_externals = echo make
@@ -13,6 +13,8 @@ commands =
     ruff .
     pytest
     make -C test test
+env =
+    PYTHONDEVMODE=1
 
 [testenv:lint]
 deps =