diff --git a/homeassistant/components/zwave_js/light.py b/homeassistant/components/zwave_js/light.py
index 94d55dc1a2f..70434290d54 100644
--- a/homeassistant/components/zwave_js/light.py
+++ b/homeassistant/components/zwave_js/light.py
@@ -125,7 +125,7 @@ class ZwaveLight(ZWaveBaseEntity, LightEntity):
             CommandClass.SWITCH_COLOR,
             value_property_key=ColorComponent.COLD_WHITE,
         )
-        self._supported_color_modes = set()
+        self._supported_color_modes: set[ColorMode] = set()
 
         # get additional (optional) values and set features
         self._target_brightness = self.get_zwave_value(
@@ -218,7 +218,7 @@ class ZwaveLight(ZWaveBaseEntity, LightEntity):
         return self._max_mireds
 
     @property
-    def supported_color_modes(self) -> set | None:
+    def supported_color_modes(self) -> set[ColorMode] | None:
         """Flag supported features."""
         return self._supported_color_modes