diff --git a/homeassistant/components/demo/siren.py b/homeassistant/components/demo/siren.py
index 9cf18a4c902..0720114861c 100644
--- a/homeassistant/components/demo/siren.py
+++ b/homeassistant/components/demo/siren.py
@@ -3,20 +3,13 @@ from __future__ import annotations
 
 from typing import Any
 
-from homeassistant.components.siren import SirenEntity
-from homeassistant.components.siren.const import (
-    SUPPORT_DURATION,
-    SUPPORT_TONES,
-    SUPPORT_TURN_OFF,
-    SUPPORT_TURN_ON,
-    SUPPORT_VOLUME_SET,
-)
+from homeassistant.components.siren import SirenEntity, SirenEntityFeature
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
-SUPPORT_FLAGS = SUPPORT_TURN_OFF | SUPPORT_TURN_ON
+SUPPORT_FLAGS = SirenEntityFeature.TURN_OFF | SirenEntityFeature.TURN_ON
 
 
 async def async_setup_platform(
@@ -65,11 +58,11 @@ class DemoSiren(SirenEntity):
         self._attr_supported_features = SUPPORT_FLAGS
         self._attr_is_on = is_on
         if available_tones is not None:
-            self._attr_supported_features |= SUPPORT_TONES
+            self._attr_supported_features |= SirenEntityFeature.TONES
         if support_volume_set:
-            self._attr_supported_features |= SUPPORT_VOLUME_SET
+            self._attr_supported_features |= SirenEntityFeature.VOLUME_SET
         if support_duration:
-            self._attr_supported_features |= SUPPORT_DURATION
+            self._attr_supported_features |= SirenEntityFeature.DURATION
         self._attr_available_tones = available_tones
 
     async def async_turn_on(self, **kwargs: Any) -> None: