diff --git a/homeassistant/components/emonitor/sensor.py b/homeassistant/components/emonitor/sensor.py
index 5d4f1983ac1..a0b0e3c1fd9 100644
--- a/homeassistant/components/emonitor/sensor.py
+++ b/homeassistant/components/emonitor/sensor.py
@@ -2,7 +2,7 @@
 
 from aioemonitor.monitor import EmonitorChannel
 
-from homeassistant.components.sensor import DEVICE_CLASS_POWER, SensorEntity
+from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
 from homeassistant.const import POWER_WATT
 from homeassistant.helpers import device_registry as dr
 from homeassistant.helpers.entity import DeviceInfo
@@ -37,7 +37,7 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
 class EmonitorPowerSensor(CoordinatorEntity, SensorEntity):
     """Representation of an Emonitor power sensor entity."""
 
-    _attr_device_class = DEVICE_CLASS_POWER
+    _attr_device_class = SensorDeviceClass.POWER
     _attr_native_unit_of_measurement = POWER_WATT
 
     def __init__(self, coordinator: DataUpdateCoordinator, channel_number: int) -> None: