diff --git a/.github/workflows/modoboa.yml b/.github/workflows/modoboa.yml
index 86bd2c383..3faf976b0 100644
--- a/.github/workflows/modoboa.yml
+++ b/.github/workflows/modoboa.yml
@@ -71,7 +71,7 @@ jobs:
     strategy:
       matrix:
         database: ['postgres', 'mysql']
-        python-version: [3.8, 3.9, '3.10']
+        python-version: [3.8, 3.9, '3.10', '3.11']
       fail-fast: false
 
     steps:
diff --git a/modoboa/policyd/core.py b/modoboa/policyd/core.py
index 58b1bfedf..ed710293a 100644
--- a/modoboa/policyd/core.py
+++ b/modoboa/policyd/core.py
@@ -8,7 +8,7 @@ import logging
 
 import aiosmtplib
 from dateutil.relativedelta import relativedelta
-import aioredis
+from redis import asyncio as aioredis
 
 from django.conf import settings
 from django.db import connections
diff --git a/modoboa/policyd/tests.py b/modoboa/policyd/tests.py
index 1461b7e47..d3bd97000 100644
--- a/modoboa/policyd/tests.py
+++ b/modoboa/policyd/tests.py
@@ -1,8 +1,8 @@
 """Policy daemon related tests."""
 
 import asyncio
-# from mock import patch
-from asynctest import patch
+from aiosmtplib import send
+from unittest.mock import AsyncMock
 from multiprocessing import Process
 import socket
 import time
@@ -57,8 +57,7 @@ class PolicyDaemonTestCase(
         self.admin.role = "SuperAdmins"
 
         db.connections.close_all()
-        patcher = patch("aiosmtplib.send")
-        self.send_mock = patcher.start()
+        self.send_mock = AsyncMock(send)
         self.process = Process(target=start_policy_daemon)
         self.process.daemon = True
         self.process.start()
@@ -200,8 +199,7 @@ sasl_username=user@test.com
             await policyd_core.reset_counters()
 
         # Run the async test
-        coro = asyncio.coroutine(run_test)
-        event_loop.run_until_complete(coro())
+        event_loop.run_until_complete(run_test())
         event_loop.close()
 
         self.assertEqual(
diff --git a/requirements.txt b/requirements.txt
index 323182108..17035df9a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,12 +32,11 @@ lxml
 chardet
 ovh
 oath
-redis
+redis>=4.2.0rc1
 rrdtool>=0.1.10
 qrcode
 
 aiosmtplib
-aioredis==2.0.1
 
 # PDF credentials
 reportlab
diff --git a/test-requirements.txt b/test-requirements.txt
index 0d1f08db2..117f92971 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,4 +3,3 @@ factory-boy<3.3.0
 httmock==1.4.0
 testfixtures==7.1.0
 tox
-asynctest