diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index d64e73d..94c7c5d 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9]
+        python-version: ["3.7", "3.8", "3.9", "3.10"]
     steps:
     - name: Checkout sources
       uses: actions/checkout@v2
diff --git a/devolo_plc_api/__init__.py b/devolo_plc_api/__init__.py
index eddea92..c509377 100644
--- a/devolo_plc_api/__init__.py
+++ b/devolo_plc_api/__init__.py
@@ -1,7 +1,7 @@
 try:
     from importlib.metadata import PackageNotFoundError, version
 except ImportError:
-    from importlib_metadata import PackageNotFoundError, version  # type: ignore[no-redef]
+    from importlib_metadata import PackageNotFoundError, version  # type: ignore
 
 try:
     __version__ = version("devolo_plc_api")
diff --git a/devolo_plc_api/clients/protobuf.py b/devolo_plc_api/clients/protobuf.py
index c37d849..db3a4f2 100644
--- a/devolo_plc_api/clients/protobuf.py
+++ b/devolo_plc_api/clients/protobuf.py
@@ -1,7 +1,9 @@
+from __future__ import annotations
+
 import asyncio
 import logging
 from abc import ABC, abstractclassmethod
-from typing import Callable
+from typing import Any, Callable
 
 from google.protobuf.json_format import MessageToDict
 from httpx import AsyncClient, ConnectError, ConnectTimeout, DigestAuth, ReadTimeout, Response
@@ -69,6 +71,6 @@ async def _async_post(self, sub_url: str, content: bytes, timeout: float = TIMEO
             raise DeviceUnavailable("The device is currenctly not available. Maybe on standby?") from None
 
     @staticmethod
-    def _message_to_dict(message) -> dict:
+    def _message_to_dict(message) -> dict[str, Any]:
         """ Convert message to dict with certain settings. """
         return MessageToDict(message=message, including_default_value_fields=True, preserving_proto_field_name=True)
diff --git a/devolo_plc_api/device.py b/devolo_plc_api/device.py
index 48995f1..037f90d 100644
--- a/devolo_plc_api/device.py
+++ b/devolo_plc_api/device.py
@@ -1,9 +1,11 @@
+from __future__ import annotations
+
 import asyncio
 import ipaddress
 import logging
 import struct
 from datetime import date
-from typing import Dict, Optional
+from typing import Any
 
 import httpx
 from zeroconf import ServiceBrowser, ServiceInfo, ServiceStateChange, Zeroconf
@@ -12,9 +14,10 @@
 from .exceptions.device import DeviceNotFound
 from .plcnet_api.plcnetapi import PlcNetApi
 
-EMPTY_INFO: Dict = {
-    "properties": {}
-}
+EMPTY_INFO: dict[str,
+                 Any] = {
+                     "properties": {}
+                 }
 
 
 class Device:
@@ -29,9 +32,11 @@ class Device:
 
     def __init__(self,
                  ip: str,
-                 plcnetapi: Optional[Dict] = None,
-                 deviceapi: Optional[Dict] = None,
-                 zeroconf_instance: Optional[Zeroconf] = None):
+                 plcnetapi: dict[str,
+                                 Any] | None = None,
+                 deviceapi: dict[str,
+                                 Any] | None = None,
+                 zeroconf_instance: Zeroconf | None = None):
         self.firmware_date = date.fromtimestamp(0)
         self.firmware_version = ""
         self.hostname = ""
@@ -46,13 +51,15 @@ def __init__(self,
         self.plcnet = None
 
         self._connected = False
-        self._info: Dict = {
-            "_dvl-plcnetapi._tcp.local.": plcnetapi or EMPTY_INFO,
-            "_dvl-deviceapi._tcp.local.": deviceapi or EMPTY_INFO,
-        }
+        self._info: dict[str,
+                         dict[str,
+                              Any]] = {
+                                  "_dvl-plcnetapi._tcp.local.": plcnetapi or EMPTY_INFO,
+                                  "_dvl-deviceapi._tcp.local.": deviceapi or EMPTY_INFO,
+                              }
         self._logger = logging.getLogger(f"{self.__class__.__module__}.{self.__class__.__name__}")
         self._password = ""
-        self._session_instance: Optional[httpx.AsyncClient] = None
+        self._session_instance: httpx.AsyncClient | None = None
         self._zeroconf_instance = zeroconf_instance
         logging.captureWarnings(True)
 
@@ -90,7 +97,7 @@ def password(self, password: str):
         if self.device:
             self.device.password = password
 
-    async def async_connect(self, session_instance: Optional[httpx.AsyncClient] = None):
+    async def async_connect(self, session_instance: httpx.AsyncClient | None = None):
         """
         Connect to a device asynchronous.
 
@@ -176,11 +183,11 @@ def _state_change(self, zeroconf: Zeroconf, service_type: str, name: str, state_
             self._info[service_type] = self.info_from_service(service_info)
 
     @staticmethod
-    def info_from_service(service_info: ServiceInfo) -> Optional[Dict]:
+    def info_from_service(service_info: ServiceInfo) -> dict[str, Any]:
         """ Return prepared info from mDNS entries. """
         properties = {}
         if not service_info.addresses:
-            return None  # No need to continue, if there is no IP address to contact the device
+            return {}  # No need to continue, if there is no IP address to contact the device
 
         total_length = len(service_info.text)
         offset = 0
diff --git a/devolo_plc_api/device_api/deviceapi.py b/devolo_plc_api/device_api/deviceapi.py
index 9008242..4cd8910 100644
--- a/devolo_plc_api/device_api/deviceapi.py
+++ b/devolo_plc_api/device_api/deviceapi.py
@@ -1,4 +1,6 @@
-from typing import Callable, Dict
+from __future__ import annotations
+
+from typing import Any, Callable
 
 from httpx import AsyncClient
 
@@ -18,7 +20,7 @@ class DeviceApi(Protobuf):
     :param info: Information collected from the mDNS query
     """
 
-    def __init__(self, ip: str, session: AsyncClient, info: Dict):
+    def __init__(self, ip: str, session: AsyncClient, info: dict[str, Any]):
         super().__init__()
 
         self._ip = ip
@@ -30,7 +32,7 @@ def __init__(self, ip: str, session: AsyncClient, info: Dict):
         self._version = info["properties"]["Version"]
 
         features = info["properties"].get("Features", "")
-        self.features = features.split(",") if features else ["reset", "update", "led", "intmtg"]
+        self.features: list[str] = features.split(",") if features else ["reset", "update", "led", "intmtg"]
         self.password = ""
 
     def _feature(feature: str):  # type: ignore  # pylint: disable=no-self-argument
@@ -49,7 +51,7 @@ def wrapper(self, *args, **kwargs):
         return feature_decorator
 
     @_feature("led")
-    async def async_get_led_setting(self) -> dict:
+    async def async_get_led_setting(self) -> dict[str, Any]:
         """
         Get LED setting asynchronously. This feature only works on devices, that announce the led feature.
 
@@ -78,7 +80,7 @@ async def async_set_led_setting(self, enable: bool) -> bool:
         return bool(not response.result)  # pylint: disable=no-member
 
     @_feature("update")
-    async def async_check_firmware_available(self) -> dict:
+    async def async_check_firmware_available(self) -> dict[str, Any]:
         """
         Check asynchronously, if a firmware update is available for the device.
 
@@ -105,7 +107,7 @@ async def async_start_firmware_update(self) -> bool:
         return bool(not update_firmware.result)  # pylint: disable=no-member
 
     @_feature("wifi1")
-    async def async_get_wifi_connected_station(self) -> dict:
+    async def async_get_wifi_connected_station(self) -> dict[str, Any]:
         """
         Get wifi stations connected to the device asynchronously. This feature only works on devices, that announce the wifi1
         feature.
@@ -119,7 +121,7 @@ async def async_get_wifi_connected_station(self) -> dict:
         return self._message_to_dict(wifi_connected_proto)
 
     @_feature("wifi1")
-    async def async_get_wifi_guest_access(self) -> dict:
+    async def async_get_wifi_guest_access(self) -> dict[str, Any]:
         """
         Get details about wifi guest access asynchronously. This feature only works on devices, that announce the wifi1
         feature.
@@ -149,7 +151,7 @@ async def async_set_wifi_guest_access(self, enable: bool) -> bool:
         return bool(not response.result)  # pylint: disable=no-member
 
     @_feature("wifi1")
-    async def async_get_wifi_neighbor_access_points(self) -> dict:
+    async def async_get_wifi_neighbor_access_points(self) -> dict[str, Any]:
         """
         Get wifi access point in the neighborhood asynchronously. This feature only works on devices, that announce the wifi1
         feature.
@@ -163,7 +165,7 @@ async def async_get_wifi_neighbor_access_points(self) -> dict:
         return self._message_to_dict(wifi_neighbor_aps)
 
     @_feature("wifi1")
-    async def async_get_wifi_repeated_access_points(self):
+    async def async_get_wifi_repeated_access_points(self) -> dict[str, Any]:
         """
         Get repeated wifi access point asynchronously. This feature only works on repeater devices, that announce the wifi1
         feature.
@@ -177,7 +179,7 @@ async def async_get_wifi_repeated_access_points(self):
         return self._message_to_dict(wifi_connected_proto)
 
     @_feature("wifi1")
-    async def async_start_wps(self):
+    async def async_start_wps(self) -> bool:
         """
         Start WPS push button configuration.
 
diff --git a/devolo_plc_api/network/__init__.py b/devolo_plc_api/network/__init__.py
index f080273..92b58d2 100644
--- a/devolo_plc_api/network/__init__.py
+++ b/devolo_plc_api/network/__init__.py
@@ -1,16 +1,17 @@
+from __future__ import annotations
+
 import asyncio
 import time
-from typing import Dict
 
 from zeroconf import ServiceBrowser, ServiceStateChange, Zeroconf
 
 from ..device import Device
 
-_devices: Dict[str,
+_devices: dict[str,
                Device] = {}
 
 
-async def async_discover_network() -> Dict[str, Device]:
+async def async_discover_network() -> dict[str, Device]:
     """
     Discover all devices that expose the devolo device API via mDNS asynchronous.
 
@@ -22,7 +23,7 @@ async def async_discover_network() -> Dict[str, Device]:
     return _devices
 
 
-def discover_network() -> Dict[str, Device]:
+def discover_network() -> dict[str, Device]:
     """
     Discover devices that expose the devolo device API via mDNS synchronous.
 
diff --git a/devolo_plc_api/plcnet_api/plcnetapi.py b/devolo_plc_api/plcnet_api/plcnetapi.py
index c3fe0bb..bd9402a 100644
--- a/devolo_plc_api/plcnet_api/plcnetapi.py
+++ b/devolo_plc_api/plcnet_api/plcnetapi.py
@@ -1,4 +1,5 @@
-from typing import Dict
+from __future__ import annotations
+from typing import Any
 
 from httpx import AsyncClient
 
@@ -17,7 +18,7 @@ class PlcNetApi(Protobuf):
     :param info: Information collected from the mDNS query
     """
 
-    def __init__(self, ip: str, session: AsyncClient, info: Dict):
+    def __init__(self, ip: str, session: AsyncClient, info: dict[str, Any]):
         super().__init__()
 
         self._ip = ip
@@ -30,7 +31,7 @@ def __init__(self, ip: str, session: AsyncClient, info: Dict):
 
         self.password = ""  # PLC API is not password protected.
 
-    async def async_get_network_overview(self) -> dict:
+    async def async_get_network_overview(self) -> dict[str, Any]:
         """
         Get a PLC network overview.
 
diff --git a/devolo_plc_api/py.typed b/devolo_plc_api/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index d6a4865..fd7d520 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [v0.5.3] - 2021/10/18
+
+### Changed
+
+- Rework typing
+- Mark package as typed
+- Add Python 3.10 to CI
+
 ## [v0.5.2] - 2021/09/01
 
 ### Changed
diff --git a/setup.py b/setup.py
index 11c76d3..d3e54f8 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 import shlex
 from subprocess import check_call
 
-from setuptools import find_packages, setup
+from setuptools import setup
 from setuptools.command.develop import develop
 
 with open("README.md", "r") as fh:
@@ -29,15 +29,17 @@ def run(self):
     long_description=long_description,
     long_description_content_type="text/markdown",
     url="https://github.com/2Fake/devolo_plc_api",
-    packages=find_packages(exclude=("tests*",
-                                    )),
+    packages=["devolo_plc_api"],
+    package_data={
+        "devolo_plc_api": ["py.typed"],
+    },
     classifiers=[
         "Programming Language :: Python :: 3",
         "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
         "Operating System :: OS Independent",
     ],
     install_requires=[
-        "httpx>=0.14,<0.20",
+        "httpx>=0.14,<0.21",
         "importlib-metadata;python_version<'3.8'",
         "protobuf",
         "zeroconf>=0.27.0",
@@ -56,5 +58,5 @@ def run(self):
         ],
     },
     setup_requires=["setuptools_scm"],
-    python_requires='>=3.7',
+    python_requires=">=3.7",
 )
diff --git a/tests/fixtures/device.py b/tests/fixtures/device.py
index af8a848..7359ef3 100644
--- a/tests/fixtures/device.py
+++ b/tests/fixtures/device.py
@@ -22,7 +22,7 @@ def mock_device(request):
     device._session = Mock()
     device._session.aclose = AsyncMock()
     device._zeroconf = Mock()
-    device._zeroconf.close = lambda: None
+    device._zeroconf.close = Mock()
     yield device
 
 
diff --git a/tests/test_device.py b/tests/test_device.py
index 1afa1f9..f4ed240 100644
--- a/tests/test_device.py
+++ b/tests/test_device.py
@@ -54,12 +54,10 @@ def test_connect(self, mocker, mock_device):
             assert spy_connect.call_count == 1
 
     @pytest.mark.asyncio
-    async def test_async_disconnect(self, mocker, mock_device):
-        spy_zeroconf = mocker.spy(mock_device._zeroconf, "close")
-        spy_session = mocker.spy(mock_device._session, "aclose")
+    async def test_async_disconnect(self, mock_device):
         await mock_device.async_disconnect()
-        assert spy_zeroconf.call_count == 1
-        assert spy_session.call_count == 1
+        assert mock_device._zeroconf.close.call_count == 1
+        assert mock_device._session.aclose.call_count == 1
         assert not mock_device._connected
 
     def test_disconnect(self, mocker, mock_device):
@@ -143,4 +141,4 @@ def test__state_change_removed(self, mock_device, mock_zeroconf):
     def test_info_from_service_no_address(self, mock_device):
         service_info = Mock()
         service_info.addresses = None
-        assert mock_device.info_from_service(service_info) is None
+        assert mock_device.info_from_service(service_info) == {}