diff --git a/homeassistant/components/shelly/binary_sensor.py b/homeassistant/components/shelly/binary_sensor.py
index dd1b3a9d66d..96d62152830 100644
--- a/homeassistant/components/shelly/binary_sensor.py
+++ b/homeassistant/components/shelly/binary_sensor.py
@@ -12,6 +12,7 @@ from homeassistant.components.binary_sensor import (
     DEVICE_CLASS_POWER,
     DEVICE_CLASS_PROBLEM,
     DEVICE_CLASS_SMOKE,
+    DEVICE_CLASS_UPDATE,
     DEVICE_CLASS_VIBRATION,
     STATE_ON,
     BinarySensorEntity,
@@ -99,7 +100,7 @@ REST_SENSORS: Final = {
     ),
     "fwupdate": RestAttributeDescription(
         name="Firmware Update",
-        icon="mdi:update",
+        device_class=DEVICE_CLASS_UPDATE,
         value=lambda status, _: status["update"]["has_update"],
         default_enabled=False,
         extra_state_attributes=lambda status: {