diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 1e402d3f..2a13b5f0 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -14,6 +14,7 @@ Changed
 -------
 * Relax ``async-timeout`` version to support different installations. Merged #1009.
 * ``unpair`` function of ``BleakClient`` in WinRT backend can be called without being connected to remove stored device information
+* Use relative imports internally. Merged #1007.
 
 `0.17.0`_ (2022-09-12)
 ======================
@@ -49,7 +50,7 @@ Fixed
 
 Removed
 -------
-- Removed ``BLEDeviceCoreBluetooth`` type from CoreBluetooth backend. Merged #977.
+* Removed ``BLEDeviceCoreBluetooth`` type from CoreBluetooth backend. Merged #977.
 
 `0.16.0`_ (2022-08-31)
 ======================
diff --git a/bleak/__init__.py b/bleak/__init__.py
index 180727ab..61d4b8a5 100644
--- a/bleak/__init__.py
+++ b/bleak/__init__.py
@@ -5,15 +5,15 @@
 __author__ = """Henrik Blidh"""
 __email__ = "henrik.blidh@gmail.com"
 
-import os
-import sys
+import asyncio
 import logging
+import os
 import platform
-import asyncio
+import sys
 from warnings import warn
 
-from bleak.__version__ import __version__  # noqa: F401
-from bleak.exc import BleakError
+from .__version__ import __version__  # noqa: F401
+from .exc import BleakError
 
 _on_rtd = os.environ.get("READTHEDOCS") == "True"
 
@@ -30,31 +30,31 @@
 if _on_rtd:
     pass
 elif os.environ.get("P4A_BOOTSTRAP") is not None:
-    from bleak.backends.p4android.scanner import (  # noqa: F401
-        BleakScannerP4Android as BleakScanner,
-    )
-    from bleak.backends.p4android.client import (  # noqa: F401
+    from .backends.p4android.client import (  # noqa: F401
         BleakClientP4Android as BleakClient,
     )
-elif platform.system() == "Linux":
-    from bleak.backends.bluezdbus.scanner import (  # noqa: F401
-        BleakScannerBlueZDBus as BleakScanner,
+    from .backends.p4android.scanner import (  # noqa: F401
+        BleakScannerP4Android as BleakScanner,
     )
-    from bleak.backends.bluezdbus.client import (  # noqa: F401
+elif platform.system() == "Linux":
+    from .backends.bluezdbus.client import (  # noqa: F401
         BleakClientBlueZDBus as BleakClient,
     )
+    from .backends.bluezdbus.scanner import (  # noqa: F401
+        BleakScannerBlueZDBus as BleakScanner,
+    )
 elif platform.system() == "Darwin":
     try:
         from CoreBluetooth import CBPeripheral  # noqa: F401
     except Exception as ex:
         raise BleakError("Bleak requires the CoreBluetooth Framework") from ex
 
-    from bleak.backends.corebluetooth.scanner import (  # noqa: F401
-        BleakScannerCoreBluetooth as BleakScanner,
-    )
-    from bleak.backends.corebluetooth.client import (  # noqa: F401
+    from .backends.corebluetooth.client import (  # noqa: F401
         BleakClientCoreBluetooth as BleakClient,
     )
+    from .backends.corebluetooth.scanner import (  # noqa: F401
+        BleakScannerCoreBluetooth as BleakScanner,
+    )
 
 elif platform.system() == "Windows":
     # Requires Windows 10 Creators update at least, i.e. Window 10.0.16299
@@ -71,12 +71,8 @@
             "Requires at least Windows 10 version 0.16299 (Fall Creators Update)."
         )
 
-    from bleak.backends.winrt.scanner import (  # noqa: F401
-        BleakScannerWinRT as BleakScanner,
-    )
-    from bleak.backends.winrt.client import (  # noqa: F401
-        BleakClientWinRT as BleakClient,
-    )
+    from .backends.winrt.client import BleakClientWinRT as BleakClient  # noqa: F401
+    from .backends.winrt.scanner import BleakScannerWinRT as BleakScanner  # noqa: F401
 
 else:
     raise BleakError(f"Unsupported platform: {platform.system()}")
diff --git a/bleak/backends/bluezdbus/client.py b/bleak/backends/bluezdbus/client.py
index 3cffe685..82e85ba2 100644
--- a/bleak/backends/bluezdbus/client.py
+++ b/bleak/backends/bluezdbus/client.py
@@ -2,33 +2,29 @@
 """
 BLE Client for BlueZ on Linux
 """
+import asyncio
 import inspect
 import logging
-import asyncio
 import os
 import warnings
 from typing import Callable, Optional, Union
 from uuid import UUID
 
 import async_timeout
-
 from dbus_fast.aio import MessageBus
 from dbus_fast.constants import BusType, ErrorType
 from dbus_fast.message import Message
 from dbus_fast.signature import Variant
 
-from bleak.backends.bluezdbus import defs
-from bleak.backends.bluezdbus.characteristic import BleakGATTCharacteristicBlueZDBus
-from bleak.backends.bluezdbus.manager import get_global_bluez_manager
-from bleak.backends.bluezdbus.scanner import BleakScannerBlueZDBus
-from bleak.backends.bluezdbus.utils import (
-    assert_reply,
-    extract_service_handle_from_path,
-)
-from bleak.backends.client import BaseBleakClient
-from bleak.backends.device import BLEDevice
-from bleak.backends.service import BleakGATTServiceCollection
-from bleak.exc import BleakDBusError, BleakError
+from ...exc import BleakDBusError, BleakError
+from ..client import BaseBleakClient
+from ..device import BLEDevice
+from ..service import BleakGATTServiceCollection
+from . import defs
+from .characteristic import BleakGATTCharacteristicBlueZDBus
+from .manager import get_global_bluez_manager
+from .scanner import BleakScannerBlueZDBus
+from .utils import assert_reply, extract_service_handle_from_path
 from .version import BlueZFeatures
 
 logger = logging.getLogger(__name__)
diff --git a/bleak/backends/bluezdbus/service.py b/bleak/backends/bluezdbus/service.py
index fdc11348..a6563782 100644
--- a/bleak/backends/bluezdbus/service.py
+++ b/bleak/backends/bluezdbus/service.py
@@ -1,8 +1,8 @@
 from typing import List
 
-from bleak.backends.bluezdbus.utils import extract_service_handle_from_path
-from bleak.backends.service import BleakGATTService
-from bleak.backends.bluezdbus.characteristic import BleakGATTCharacteristicBlueZDBus
+from ..service import BleakGATTService
+from .characteristic import BleakGATTCharacteristicBlueZDBus
+from .utils import extract_service_handle_from_path
 
 
 class BleakGATTServiceBlueZDBus(BleakGATTService):
diff --git a/bleak/backends/characteristic.py b/bleak/backends/characteristic.py
index fa847174..a9ae5ed3 100644
--- a/bleak/backends/characteristic.py
+++ b/bleak/backends/characteristic.py
@@ -7,11 +7,11 @@
 """
 import abc
 import enum
+from typing import Any, List, Union
 from uuid import UUID
-from typing import List, Union, Any
 
-from bleak.backends.descriptor import BleakGATTDescriptor
-from bleak.uuids import uuidstr_to_str
+from ..uuids import uuidstr_to_str
+from .descriptor import BleakGATTDescriptor
 
 
 class GattCharacteristicsFlags(enum.Enum):
diff --git a/bleak/backends/client.py b/bleak/backends/client.py
index 89deb3c4..a402891e 100644
--- a/bleak/backends/client.py
+++ b/bleak/backends/client.py
@@ -11,9 +11,9 @@
 from typing import Callable, Optional, Union
 from warnings import warn
 
-from bleak.backends.service import BleakGATTServiceCollection
-from bleak.backends.characteristic import BleakGATTCharacteristic
-from bleak.backends.device import BLEDevice
+from .service import BleakGATTServiceCollection
+from .characteristic import BleakGATTCharacteristic
+from .device import BLEDevice
 
 
 class BaseBleakClient(abc.ABC):
diff --git a/bleak/backends/corebluetooth/PeripheralDelegate.py b/bleak/backends/corebluetooth/PeripheralDelegate.py
index 6feab6b1..a6bdf870 100644
--- a/bleak/backends/corebluetooth/PeripheralDelegate.py
+++ b/bleak/backends/corebluetooth/PeripheralDelegate.py
@@ -22,7 +22,7 @@
     CBCharacteristicWriteWithResponse,
 )
 
-from bleak.exc import BleakError
+from ...exc import BleakError
 
 # logging.basicConfig(level=logging.DEBUG)
 logger = logging.getLogger(__name__)
diff --git a/bleak/backends/corebluetooth/characteristic.py b/bleak/backends/corebluetooth/characteristic.py
index 853ea411..09f60729 100644
--- a/bleak/backends/corebluetooth/characteristic.py
+++ b/bleak/backends/corebluetooth/characteristic.py
@@ -9,10 +9,10 @@
 
 from CoreBluetooth import CBCharacteristic
 
-from bleak.backends.characteristic import BleakGATTCharacteristic
-from bleak.backends.corebluetooth.descriptor import BleakGATTDescriptorCoreBluetooth
-from bleak.backends.corebluetooth.utils import cb_uuid_to_str
-from bleak.backends.descriptor import BleakGATTDescriptor
+from ..characteristic import BleakGATTCharacteristic
+from ..descriptor import BleakGATTDescriptor
+from .descriptor import BleakGATTDescriptorCoreBluetooth
+from .utils import cb_uuid_to_str
 
 
 class CBCharacteristicProperties(Enum):
diff --git a/bleak/backends/corebluetooth/client.py b/bleak/backends/corebluetooth/client.py
index 2ca54916..070c4c20 100644
--- a/bleak/backends/corebluetooth/client.py
+++ b/bleak/backends/corebluetooth/client.py
@@ -9,29 +9,26 @@
 import uuid
 from typing import Callable, Optional, Union
 
-from Foundation import NSArray, NSData
 from CoreBluetooth import (
-    CBCharacteristicWriteWithResponse,
     CBCharacteristicWriteWithoutResponse,
+    CBCharacteristicWriteWithResponse,
     CBPeripheral,
     CBPeripheralStateConnected,
 )
+from Foundation import NSArray, NSData
 
-from bleak.backends.client import BaseBleakClient
-from bleak.backends.corebluetooth.CentralManagerDelegate import CentralManagerDelegate
-from bleak.backends.corebluetooth.characteristic import (
-    BleakGATTCharacteristicCoreBluetooth,
-)
-from bleak.backends.corebluetooth.descriptor import BleakGATTDescriptorCoreBluetooth
-from bleak.backends.corebluetooth.PeripheralDelegate import PeripheralDelegate
-from bleak.backends.corebluetooth.scanner import BleakScannerCoreBluetooth
-from bleak.backends.corebluetooth.service import BleakGATTServiceCoreBluetooth
-from bleak.backends.corebluetooth.utils import cb_uuid_to_str
-from bleak.backends.device import BLEDevice
-from bleak.backends.service import BleakGATTServiceCollection
-from bleak.backends.characteristic import BleakGATTCharacteristic
-
-from bleak.exc import BleakError
+from ...exc import BleakError
+from ..characteristic import BleakGATTCharacteristic
+from ..client import BaseBleakClient
+from ..device import BLEDevice
+from ..service import BleakGATTServiceCollection
+from .CentralManagerDelegate import CentralManagerDelegate
+from .characteristic import BleakGATTCharacteristicCoreBluetooth
+from .descriptor import BleakGATTDescriptorCoreBluetooth
+from .PeripheralDelegate import PeripheralDelegate
+from .scanner import BleakScannerCoreBluetooth
+from .service import BleakGATTServiceCoreBluetooth
+from .utils import cb_uuid_to_str
 
 logger = logging.getLogger(__name__)
 
diff --git a/bleak/backends/corebluetooth/descriptor.py b/bleak/backends/corebluetooth/descriptor.py
index fcdbb91e..923134dd 100644
--- a/bleak/backends/corebluetooth/descriptor.py
+++ b/bleak/backends/corebluetooth/descriptor.py
@@ -6,8 +6,8 @@
 """
 from CoreBluetooth import CBDescriptor
 
-from bleak.backends.corebluetooth.utils import cb_uuid_to_str
-from bleak.backends.descriptor import BleakGATTDescriptor
+from ..corebluetooth.utils import cb_uuid_to_str
+from ..descriptor import BleakGATTDescriptor
 
 
 class BleakGATTDescriptorCoreBluetooth(BleakGATTDescriptor):
diff --git a/bleak/backends/corebluetooth/scanner.py b/bleak/backends/corebluetooth/scanner.py
index 7d1025d9..5fd4a765 100644
--- a/bleak/backends/corebluetooth/scanner.py
+++ b/bleak/backends/corebluetooth/scanner.py
@@ -2,24 +2,20 @@
 import sys
 from typing import Any, Dict, List, Optional
 
-import objc
-from Foundation import NSArray, NSUUID, NSBundle
-from CoreBluetooth import CBPeripheral
-
 if sys.version_info[:2] < (3, 8):
     from typing_extensions import Literal
 else:
     from typing import Literal
 
-from bleak.backends.corebluetooth.CentralManagerDelegate import CentralManagerDelegate
-from bleak.backends.corebluetooth.utils import cb_uuid_to_str
-from bleak.backends.device import BLEDevice
-from bleak.backends.scanner import (
-    AdvertisementDataCallback,
-    BaseBleakScanner,
-    AdvertisementData,
-)
-from bleak.exc import BleakError
+import objc
+from CoreBluetooth import CBPeripheral
+from Foundation import NSUUID, NSArray, NSBundle
+
+from ...exc import BleakError
+from ..device import BLEDevice
+from ..scanner import AdvertisementData, AdvertisementDataCallback, BaseBleakScanner
+from .CentralManagerDelegate import CentralManagerDelegate
+from .utils import cb_uuid_to_str
 
 logger = logging.getLogger(__name__)
 
diff --git a/bleak/backends/corebluetooth/service.py b/bleak/backends/corebluetooth/service.py
index 2441d651..695181c7 100644
--- a/bleak/backends/corebluetooth/service.py
+++ b/bleak/backends/corebluetooth/service.py
@@ -1,12 +1,10 @@
-from bleak.backends.corebluetooth.utils import cb_uuid_to_str
 from typing import List
 
 from CoreBluetooth import CBService
 
-from bleak.backends.corebluetooth.characteristic import (
-    BleakGATTCharacteristicCoreBluetooth,
-)
-from bleak.backends.service import BleakGATTService
+from ..service import BleakGATTService
+from .characteristic import BleakGATTCharacteristicCoreBluetooth
+from .utils import cb_uuid_to_str
 
 
 class BleakGATTServiceCoreBluetooth(BleakGATTService):
diff --git a/bleak/backends/p4android/characteristic.py b/bleak/backends/p4android/characteristic.py
index 8c1e1b34..562eb6ea 100644
--- a/bleak/backends/p4android/characteristic.py
+++ b/bleak/backends/p4android/characteristic.py
@@ -1,11 +1,9 @@
+from typing import List, Union
 from uuid import UUID
-from typing import Union, List
-
-from bleak.backends.characteristic import BleakGATTCharacteristic
-from bleak.backends.descriptor import BleakGATTDescriptor
-from bleak.exc import BleakError
-
 
+from ...exc import BleakError
+from ..characteristic import BleakGATTCharacteristic
+from ..descriptor import BleakGATTDescriptor
 from . import defs
 
 
diff --git a/bleak/backends/p4android/client.py b/bleak/backends/p4android/client.py
index 2f97b0b6..4a04a78b 100644
--- a/bleak/backends/p4android/client.py
+++ b/bleak/backends/p4android/client.py
@@ -8,19 +8,17 @@
 import warnings
 from typing import Callable, Optional, Union
 
-from bleak.backends.device import BLEDevice
-from bleak.backends.service import BleakGATTServiceCollection
-from bleak.exc import BleakError
-from bleak.backends.client import BaseBleakClient
-from bleak.backends.p4android.service import BleakGATTServiceP4Android
-from bleak.backends.p4android.characteristic import BleakGATTCharacteristicP4Android
-from bleak.backends.p4android.descriptor import BleakGATTDescriptorP4Android
-
 from android.broadcast import BroadcastReceiver
 from jnius import java_method
 
-from . import defs
-from . import utils
+from ...exc import BleakError
+from ..client import BaseBleakClient
+from ..device import BLEDevice
+from ..service import BleakGATTServiceCollection
+from . import defs, utils
+from .characteristic import BleakGATTCharacteristicP4Android
+from .descriptor import BleakGATTDescriptorP4Android
+from .service import BleakGATTServiceP4Android
 
 logger = logging.getLogger(__name__)
 
diff --git a/bleak/backends/p4android/descriptor.py b/bleak/backends/p4android/descriptor.py
index 48669555..844316ec 100644
--- a/bleak/backends/p4android/descriptor.py
+++ b/bleak/backends/p4android/descriptor.py
@@ -1,4 +1,4 @@
-from bleak.backends.descriptor import BleakGATTDescriptor
+from ..descriptor import BleakGATTDescriptor
 
 
 class BleakGATTDescriptorP4Android(BleakGATTDescriptor):
diff --git a/bleak/backends/p4android/scanner.py b/bleak/backends/p4android/scanner.py
index 6b4c6f38..3a02b5c1 100644
--- a/bleak/backends/p4android/scanner.py
+++ b/bleak/backends/p4android/scanner.py
@@ -3,30 +3,23 @@
 import asyncio
 import logging
 import sys
-from typing import List, Optional
 import warnings
-
-import async_timeout
+from typing import List, Optional
 
 if sys.version_info[:2] < (3, 8):
     from typing_extensions import Literal
 else:
     from typing import Literal
 
-from bleak.backends.scanner import (
-    AdvertisementDataCallback,
-    BaseBleakScanner,
-    AdvertisementData,
-)
-from bleak.backends.device import BLEDevice
-from bleak.exc import BleakError
-
+import async_timeout
 from android.broadcast import BroadcastReceiver
-from android.permissions import request_permissions, Permission
+from android.permissions import Permission, request_permissions
 from jnius import cast, java_method
 
-from . import defs
-from . import utils
+from ...exc import BleakError
+from ..device import BLEDevice
+from ..scanner import AdvertisementData, AdvertisementDataCallback, BaseBleakScanner
+from . import defs, utils
 
 logger = logging.getLogger(__name__)
 
diff --git a/bleak/backends/p4android/service.py b/bleak/backends/p4android/service.py
index 6c601584..aab1fc27 100644
--- a/bleak/backends/p4android/service.py
+++ b/bleak/backends/p4android/service.py
@@ -1,7 +1,7 @@
 from typing import List
 
-from bleak.backends.service import BleakGATTService
-from bleak.backends.p4android.characteristic import BleakGATTCharacteristicP4Android
+from ..service import BleakGATTService
+from .characteristic import BleakGATTCharacteristicP4Android
 
 
 class BleakGATTServiceP4Android(BleakGATTService):
diff --git a/bleak/backends/p4android/utils.py b/bleak/backends/p4android/utils.py
index 7c80316c..6dc50b80 100644
--- a/bleak/backends/p4android/utils.py
+++ b/bleak/backends/p4android/utils.py
@@ -5,7 +5,7 @@
 
 from jnius import PythonJavaClass
 
-from bleak.exc import BleakError
+from ...exc import BleakError
 
 logger = logging.getLogger(__name__)
 
diff --git a/bleak/backends/scanner.py b/bleak/backends/scanner.py
index b5b37cf5..4b7d8fb4 100644
--- a/bleak/backends/scanner.py
+++ b/bleak/backends/scanner.py
@@ -1,18 +1,12 @@
 import abc
 import asyncio
 import inspect
-from typing import (
-    Awaitable,
-    Callable,
-    Dict,
-    List,
-    Optional,
-    Tuple,
-)
+from typing import Awaitable, Callable, Dict, List, Optional, Tuple
 from warnings import warn
+
 import async_timeout
 
-from bleak.backends.device import BLEDevice
+from .device import BLEDevice
 
 
 class AdvertisementData:
diff --git a/bleak/backends/service.py b/bleak/backends/service.py
index de6f2289..1528ca66 100644
--- a/bleak/backends/service.py
+++ b/bleak/backends/service.py
@@ -6,14 +6,14 @@
 
 """
 import abc
-from uuid import UUID
-from typing import Dict, List, Optional, Union, Iterator
 import logging
+from typing import Dict, Iterator, List, Optional, Union
+from uuid import UUID
 
-from bleak import BleakError
-from bleak.uuids import uuidstr_to_str
-from bleak.backends.characteristic import BleakGATTCharacteristic
-from bleak.backends.descriptor import BleakGATTDescriptor
+from ..exc import BleakError
+from ..uuids import uuidstr_to_str
+from .characteristic import BleakGATTCharacteristic
+from .descriptor import BleakGATTDescriptor
 
 logger = logging.getLogger(__name__)
 
diff --git a/bleak/backends/winrt/characteristic.py b/bleak/backends/winrt/characteristic.py
index 7270eeab..cad9b38d 100644
--- a/bleak/backends/winrt/characteristic.py
+++ b/bleak/backends/winrt/characteristic.py
@@ -6,8 +6,8 @@
     GattCharacteristicProperties,
 )
 
-from bleak.backends.characteristic import BleakGATTCharacteristic
-from bleak.backends.descriptor import BleakGATTDescriptor
+from ..characteristic import BleakGATTCharacteristic
+from ..descriptor import BleakGATTDescriptor
 
 
 _GattCharacteristicsPropertiesMap = {
diff --git a/bleak/backends/winrt/client.py b/bleak/backends/winrt/client.py
index 5564efb3..5edda76c 100644
--- a/bleak/backends/winrt/client.py
+++ b/bleak/backends/winrt/client.py
@@ -5,14 +5,14 @@
 Created on 2020-08-19 by hbldh <henrik.blidh@nedomkull.com>
 """
 
+import asyncio
 import inspect
 import logging
-import asyncio
+import sys
 import uuid
 import warnings
 from functools import wraps
-import sys
-from typing import Callable, Any, List, Optional, Sequence, Union
+from typing import Any, Callable, List, Optional, Sequence, Union
 
 import async_timeout
 
@@ -22,22 +22,22 @@
     from typing import Literal, TypedDict
 
 from bleak_winrt.windows.devices.bluetooth import (
+    BluetoothAddressType,
+    BluetoothCacheMode,
     BluetoothError,
     BluetoothLEDevice,
-    BluetoothCacheMode,
-    BluetoothAddressType,
 )
 from bleak_winrt.windows.devices.bluetooth.genericattributeprofile import (
     GattCharacteristic,
+    GattCharacteristicProperties,
+    GattClientCharacteristicConfigurationDescriptorValue,
     GattCommunicationStatus,
     GattDescriptor,
     GattDeviceService,
+    GattSession,
     GattSessionStatus,
     GattSessionStatusChangedEventArgs,
     GattWriteOption,
-    GattCharacteristicProperties,
-    GattClientCharacteristicConfigurationDescriptorValue,
-    GattSession,
 )
 from bleak_winrt.windows.devices.enumeration import (
     DeviceInformation,
@@ -48,17 +48,15 @@
 from bleak_winrt.windows.foundation import EventRegistrationToken
 from bleak_winrt.windows.storage.streams import Buffer
 
-from bleak.backends.device import BLEDevice
-from bleak.backends.winrt.scanner import BleakScannerWinRT
-from bleak.exc import BleakError, PROTOCOL_ERROR_CODES
-from bleak.backends.client import BaseBleakClient
-
-from bleak.backends.characteristic import BleakGATTCharacteristic
-from bleak.backends.service import BleakGATTServiceCollection
-from bleak.backends.winrt.service import BleakGATTServiceWinRT
-from bleak.backends.winrt.characteristic import BleakGATTCharacteristicWinRT
-from bleak.backends.winrt.descriptor import BleakGATTDescriptorWinRT
-
+from ...exc import PROTOCOL_ERROR_CODES, BleakError
+from ..characteristic import BleakGATTCharacteristic
+from ..client import BaseBleakClient
+from ..device import BLEDevice
+from ..service import BleakGATTServiceCollection
+from .characteristic import BleakGATTCharacteristicWinRT
+from .descriptor import BleakGATTDescriptorWinRT
+from .scanner import BleakScannerWinRT
+from .service import BleakGATTServiceWinRT
 
 logger = logging.getLogger(__name__)
 
diff --git a/bleak/backends/winrt/descriptor.py b/bleak/backends/winrt/descriptor.py
index 3514ffc1..34a90fba 100644
--- a/bleak/backends/winrt/descriptor.py
+++ b/bleak/backends/winrt/descriptor.py
@@ -2,7 +2,7 @@
 
 from bleak_winrt.windows.devices.bluetooth.genericattributeprofile import GattDescriptor
 
-from bleak.backends.descriptor import BleakGATTDescriptor
+from ..descriptor import BleakGATTDescriptor
 
 
 class BleakGATTDescriptorWinRT(BleakGATTDescriptor):
diff --git a/bleak/backends/winrt/service.py b/bleak/backends/winrt/service.py
index 27a7ecfa..66fa6253 100644
--- a/bleak/backends/winrt/service.py
+++ b/bleak/backends/winrt/service.py
@@ -4,8 +4,8 @@
     GattDeviceService,
 )
 
-from bleak.backends.service import BleakGATTService
-from bleak.backends.winrt.characteristic import BleakGATTCharacteristicWinRT
+from ..service import BleakGATTService
+from ..winrt.characteristic import BleakGATTCharacteristicWinRT
 
 
 class BleakGATTServiceWinRT(BleakGATTService):