diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 80cc1d5..7bdcffc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,8 +15,8 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-20.04]
-        python-version: ['3.8']
-        toxenv: [quality, docs, pii_check, django32, django40]
+        python-version: ['3.8', '3.12']
+        toxenv: [quality, docs, pii_check, django42]
 
     steps:
     - uses: actions/checkout@v3
@@ -37,7 +37,7 @@ jobs:
       run: tox
 
     - name: Run coverage
-      if: matrix.python-version == '3.8' && matrix.toxenv == 'django32'
+      if: matrix.python-version == '3.8' && matrix.toxenv == 'django42'
       uses: codecov/codecov-action@v3
       with:
         flags: unittests
diff --git a/edx_event_bus_redis/__init__.py b/edx_event_bus_redis/__init__.py
index 7d8f35a..da95f68 100644
--- a/edx_event_bus_redis/__init__.py
+++ b/edx_event_bus_redis/__init__.py
@@ -5,6 +5,6 @@
 from edx_event_bus_redis.internal.consumer import RedisEventConsumer
 from edx_event_bus_redis.internal.producer import create_producer
 
-__version__ = '0.3.3'
+__version__ = '0.4.0'
 
 default_app_config = 'edx_event_bus_redis.apps.EdxEventBusRedisConfig'  # pylint: disable=invalid-name
diff --git a/edx_event_bus_redis/internal/tests/test_message.py b/edx_event_bus_redis/internal/tests/test_message.py
index 933cf66..4b155a7 100644
--- a/edx_event_bus_redis/internal/tests/test_message.py
+++ b/edx_event_bus_redis/internal/tests/test_message.py
@@ -2,6 +2,7 @@
 Tests for message module.
 """
 
+import re
 from datetime import datetime, timezone
 from uuid import UUID
 
@@ -68,14 +69,20 @@ def test_no_type(self):
         )
 
     def test_no_event_data(self):
-        msg = (b'1', {b'id': b'629f9892-c258-11ed-8dac-1c83413013cb', b'event_data': self.event_data_bytes})
+        msg = (
+            b'1',
+            {
+                b'id': b'629f9892-c258-11ed-8dac-1c83413013cb',
+                b'event_data': self.event_data_bytes,
+            }
+        )
         with pytest.raises(UnusableMessageError) as excinfo:
             RedisMessage.parse(msg, topic='some-local-topic')
-
-        assert excinfo.value.args == (
-            "Error determining metadata from message headers: "
-            "__init__() missing 1 required positional argument: 'event_type'",
+        expected_error_pattern = re.compile(
+            r"Error determining metadata from message headers: .*__init__\(\) "
+            r"missing 1 required positional argument: 'event_type'"
         )
+        assert expected_error_pattern.search(str(excinfo.value)) is not None
 
     def test_bad_msg(self):
         """
diff --git a/setup.py b/setup.py
index fbd52a8..5f5bbb5 100644
--- a/setup.py
+++ b/setup.py
@@ -154,11 +154,12 @@ def is_requirement(line):
     classifiers=[
         'Development Status :: 3 - Alpha',
         'Framework :: Django',
-        'Framework :: Django :: 3.2',
+        'Framework :: Django :: 4.2',
         'Intended Audience :: Developers',
         'License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)',
         'Natural Language :: English',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.12',
     ],
 )
diff --git a/tox.ini b/tox.ini
index a961bd6..6e87e4a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py38-django{32,40}
+envlist = py{38,312}-django{42}
 
 [pycodestyle]
 exclude = .git,.tox,migrations
@@ -32,8 +32,8 @@ norecursedirs = .* docs requirements site-packages
 
 [testenv]
 deps =
-    django32: Django>=3.2,<4.0
-    django40: Django>=4.0,<4.1
+    django42: Django>=4.2,<5.0
+    setuptools
     -r{toxinidir}/requirements/test.txt
 commands =
     python manage.py check
@@ -64,6 +64,7 @@ allowlist_externals =
     rm
     touch
 deps =
+    setuptools
     -r{toxinidir}/requirements/quality.txt
 commands =
     touch tests/__init__.py