diff --git a/homeassistant/components/nextdns/coordinator.py b/homeassistant/components/nextdns/coordinator.py
index 3bc5dfe60d1..9b82e82ffe0 100644
--- a/homeassistant/components/nextdns/coordinator.py
+++ b/homeassistant/components/nextdns/coordinator.py
@@ -4,7 +4,7 @@ from __future__ import annotations
 
 from datetime import timedelta
 import logging
-from typing import TYPE_CHECKING, TypeVar
+from typing import TYPE_CHECKING
 
 from aiohttp.client_exceptions import ClientConnectorError
 from nextdns import (
@@ -33,10 +33,10 @@ from .const import DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-CoordinatorDataT = TypeVar("CoordinatorDataT", bound=NextDnsData)
 
-
-class NextDnsUpdateCoordinator(DataUpdateCoordinator[CoordinatorDataT]):
+class NextDnsUpdateCoordinator[CoordinatorDataT: NextDnsData](
+    DataUpdateCoordinator[CoordinatorDataT]
+):
     """Class to manage fetching NextDNS data API."""
 
     config_entry: NextDnsConfigEntry
diff --git a/homeassistant/components/nextdns/entity.py b/homeassistant/components/nextdns/entity.py
index 26e0a5dd9ef..7e86d1d246c 100644
--- a/homeassistant/components/nextdns/entity.py
+++ b/homeassistant/components/nextdns/entity.py
@@ -1,14 +1,18 @@
 """Define NextDNS entities."""
 
+from nextdns.model import NextDnsData
+
 from homeassistant.helpers.device_registry import DeviceEntryType, DeviceInfo
 from homeassistant.helpers.entity import EntityDescription
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
 from .const import DOMAIN
-from .coordinator import CoordinatorDataT, NextDnsUpdateCoordinator
+from .coordinator import NextDnsUpdateCoordinator
 
 
-class NextDnsEntity(CoordinatorEntity[NextDnsUpdateCoordinator[CoordinatorDataT]]):
+class NextDnsEntity[CoordinatorDataT: NextDnsData](
+    CoordinatorEntity[NextDnsUpdateCoordinator[CoordinatorDataT]]
+):
     """Define NextDNS entity."""
 
     _attr_has_entity_name = True
diff --git a/homeassistant/components/nextdns/sensor.py b/homeassistant/components/nextdns/sensor.py
index b03f262cbeb..1b43f7c9c25 100644
--- a/homeassistant/components/nextdns/sensor.py
+++ b/homeassistant/components/nextdns/sensor.py
@@ -4,7 +4,6 @@ from __future__ import annotations
 
 from collections.abc import Callable
 from dataclasses import dataclass
-from typing import Generic
 
 from nextdns import (
     AnalyticsDnssec,
@@ -13,6 +12,7 @@ from nextdns import (
     AnalyticsProtocols,
     AnalyticsStatus,
 )
+from nextdns.model import NextDnsData
 
 from homeassistant.components.sensor import (
     SensorEntity,
@@ -32,15 +32,14 @@ from .const import (
     ATTR_PROTOCOLS,
     ATTR_STATUS,
 )
-from .coordinator import CoordinatorDataT
 from .entity import NextDnsEntity
 
 PARALLEL_UPDATES = 0
 
 
 @dataclass(frozen=True, kw_only=True)
-class NextDnsSensorEntityDescription(
-    SensorEntityDescription, Generic[CoordinatorDataT]
+class NextDnsSensorEntityDescription[CoordinatorDataT: NextDnsData](
+    SensorEntityDescription
 ):
     """NextDNS sensor entity description."""
 
@@ -297,10 +296,12 @@ async def async_setup_entry(
     )
 
 
-class NextDnsSensor(NextDnsEntity, SensorEntity):
+class NextDnsSensor[CoordinatorDataT: NextDnsData](
+    NextDnsEntity[CoordinatorDataT], SensorEntity
+):
     """Define an NextDNS sensor."""
 
-    entity_description: NextDnsSensorEntityDescription
+    entity_description: NextDnsSensorEntityDescription[CoordinatorDataT]
 
     @property
     def native_value(self) -> StateType: