diff --git a/homeassistant/components/oasa_telematics/sensor.py b/homeassistant/components/oasa_telematics/sensor.py
index a5a4a98c3d4..87562db2324 100644
--- a/homeassistant/components/oasa_telematics/sensor.py
+++ b/homeassistant/components/oasa_telematics/sensor.py
@@ -6,8 +6,12 @@ from operator import itemgetter
 import oasatelematics
 import voluptuous as vol
 
-from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
-from homeassistant.const import ATTR_ATTRIBUTION, CONF_NAME, DEVICE_CLASS_TIMESTAMP
+from homeassistant.components.sensor import (
+    PLATFORM_SCHEMA,
+    SensorDeviceClass,
+    SensorEntity,
+)
+from homeassistant.const import ATTR_ATTRIBUTION, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import dt as dt_util
 
@@ -70,7 +74,7 @@ class OASATelematicsSensor(SensorEntity):
     @property
     def device_class(self):
         """Return the class of this sensor."""
-        return DEVICE_CLASS_TIMESTAMP
+        return SensorDeviceClass.TIMESTAMP
 
     @property
     def native_value(self):