diff --git a/homeassistant/components/plaato/binary_sensor.py b/homeassistant/components/plaato/binary_sensor.py
index 52213d46791..14f2d2a069d 100644
--- a/homeassistant/components/plaato/binary_sensor.py
+++ b/homeassistant/components/plaato/binary_sensor.py
@@ -1,10 +1,10 @@
 """Support for Plaato Airlock sensors."""
+from __future__ import annotations
 
 from pyplaato.plaato import PlaatoKeg
 
 from homeassistant.components.binary_sensor import (
-    DEVICE_CLASS_OPENING,
-    DEVICE_CLASS_PROBLEM,
+    BinarySensorDeviceClass,
     BinarySensorEntity,
 )
 
@@ -40,11 +40,11 @@ class PlaatoBinarySensor(PlaatoEntity, BinarySensorEntity):
         return False
 
     @property
-    def device_class(self):
-        """Return the class of this device, from component DEVICE_CLASSES."""
+    def device_class(self) -> BinarySensorDeviceClass | None:
+        """Return the class of this device, from BinarySensorDeviceClass."""
         if self._coordinator is None:
             return None
         if self._sensor_type is PlaatoKeg.Pins.LEAK_DETECTION:
-            return DEVICE_CLASS_PROBLEM
+            return BinarySensorDeviceClass.PROBLEM
         if self._sensor_type is PlaatoKeg.Pins.POURING:
-            return DEVICE_CLASS_OPENING
+            return BinarySensorDeviceClass.OPENING
diff --git a/homeassistant/components/plaato/sensor.py b/homeassistant/components/plaato/sensor.py
index e3e37d4291e..398f44b72ff 100644
--- a/homeassistant/components/plaato/sensor.py
+++ b/homeassistant/components/plaato/sensor.py
@@ -4,7 +4,7 @@ from __future__ import annotations
 from pyplaato.models.device import PlaatoDevice
 from pyplaato.plaato import PlaatoKeg
 
-from homeassistant.components.sensor import DEVICE_CLASS_TEMPERATURE, SensorEntity
+from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect,
     async_dispatcher_send,
@@ -63,15 +63,15 @@ class PlaatoSensor(PlaatoEntity, SensorEntity):
     """Representation of a Plaato Sensor."""
 
     @property
-    def device_class(self) -> str | None:
-        """Return the class of this device, from component DEVICE_CLASSES."""
+    def device_class(self) -> SensorDeviceClass | None:
+        """Return the class of this device, from SensorDeviceClass."""
         if (
             self._coordinator is not None
             and self._sensor_type == PlaatoKeg.Pins.TEMPERATURE
         ):
-            return DEVICE_CLASS_TEMPERATURE
+            return SensorDeviceClass.TEMPERATURE
         if self._sensor_type == ATTR_TEMP:
-            return DEVICE_CLASS_TEMPERATURE
+            return SensorDeviceClass.TEMPERATURE
         return None
 
     @property