diff --git a/homeassistant/components/mikrotik/update.py b/homeassistant/components/mikrotik/update.py
index 9aa717ac3a7e..099bbeed5a23 100644
--- a/homeassistant/components/mikrotik/update.py
+++ b/homeassistant/components/mikrotik/update.py
@@ -4,6 +4,7 @@ from dataclasses import dataclass
 from typing import Any, cast, override
 
 from homeassistant.components.update import (
+    UpdateDeviceClass,
     UpdateEntity,
     UpdateEntityDescription,
     UpdateEntityFeature,
@@ -41,6 +42,7 @@ UPDATES = {
     MikrotikUpdateEntityDescription(
         key="fw-update",
         translation_key="firmware_update",
+        device_class=UpdateDeviceClass.FIRMWARE,
         entity_category=EntityCategory.CONFIG,
         supported_features=UpdateEntityFeature.INSTALL | UpdateEntityFeature.BACKUP,
         path=UPDATE,
@@ -51,6 +53,7 @@ UPDATES = {
     MikrotikUpdateEntityDescription(
         key="routerboard-update",
         translation_key="routerboard_update",
+        device_class=UpdateDeviceClass.FIRMWARE,
         entity_category=EntityCategory.CONFIG,
         supported_features=UpdateEntityFeature.INSTALL,
         path=ROUTERBOARD,
diff --git a/tests/components/mikrotik/snapshots/test_update.ambr b/tests/components/mikrotik/snapshots/test_update.ambr
index 33809e99cdeb..5f668901ed1a 100644
--- a/tests/components/mikrotik/snapshots/test_update.ambr
+++ b/tests/components/mikrotik/snapshots/test_update.ambr
@@ -24,7 +24,7 @@
     'object_id_base': 'RouterBOARD',
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <UpdateDeviceClass.FIRMWARE: 'firmware'>,
     'original_icon': None,
     'original_name': 'RouterBOARD',
     'platform': 'mikrotik',
@@ -40,6 +40,7 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       <UpdateEntityStateAttribute.AUTO_UPDATE: 'auto_update'>: False,
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'firmware',
       <UpdateEntityStateAttribute.DISPLAY_PRECISION: 'display_precision'>: 0,
       <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/brands/integration/mikrotik/icon.png',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Mikrotik RouterBOARD',
@@ -86,7 +87,7 @@
     'object_id_base': 'RouterOS',
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <UpdateDeviceClass.FIRMWARE: 'firmware'>,
     'original_icon': None,
     'original_name': 'RouterOS',
     'platform': 'mikrotik',
@@ -102,6 +103,7 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       <UpdateEntityStateAttribute.AUTO_UPDATE: 'auto_update'>: False,
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'firmware',
       <UpdateEntityStateAttribute.DISPLAY_PRECISION: 'display_precision'>: 0,
       <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/brands/integration/mikrotik/icon.png',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Mikrotik RouterOS',
@@ -148,7 +150,7 @@
     'object_id_base': 'RouterBOARD',
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <UpdateDeviceClass.FIRMWARE: 'firmware'>,
     'original_icon': None,
     'original_name': 'RouterBOARD',
     'platform': 'mikrotik',
@@ -164,6 +166,7 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       <UpdateEntityStateAttribute.AUTO_UPDATE: 'auto_update'>: False,
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'firmware',
       <UpdateEntityStateAttribute.DISPLAY_PRECISION: 'display_precision'>: 0,
       <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/brands/integration/mikrotik/icon.png',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Mikrotik RouterBOARD',
@@ -210,7 +213,7 @@
     'object_id_base': 'RouterOS',
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <UpdateDeviceClass.FIRMWARE: 'firmware'>,
     'original_icon': None,
     'original_name': 'RouterOS',
     'platform': 'mikrotik',
@@ -226,6 +229,7 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       <UpdateEntityStateAttribute.AUTO_UPDATE: 'auto_update'>: False,
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'firmware',
       <UpdateEntityStateAttribute.DISPLAY_PRECISION: 'display_precision'>: 0,
       <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/brands/integration/mikrotik/icon.png',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Mikrotik RouterOS',
@@ -272,7 +276,7 @@
     'object_id_base': 'RouterBOARD',
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <UpdateDeviceClass.FIRMWARE: 'firmware'>,
     'original_icon': None,
     'original_name': 'RouterBOARD',
     'platform': 'mikrotik',
@@ -288,6 +292,7 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       <UpdateEntityStateAttribute.AUTO_UPDATE: 'auto_update'>: False,
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'firmware',
       <UpdateEntityStateAttribute.DISPLAY_PRECISION: 'display_precision'>: 0,
       <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/brands/integration/mikrotik/icon.png',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Mikrotik RouterBOARD',
@@ -334,7 +339,7 @@
     'object_id_base': 'RouterOS',
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <UpdateDeviceClass.FIRMWARE: 'firmware'>,
     'original_icon': None,
     'original_name': 'RouterOS',
     'platform': 'mikrotik',
@@ -350,6 +355,7 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       <UpdateEntityStateAttribute.AUTO_UPDATE: 'auto_update'>: False,
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'firmware',
       <UpdateEntityStateAttribute.DISPLAY_PRECISION: 'display_precision'>: 0,
       <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/brands/integration/mikrotik/icon.png',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Mikrotik RouterOS',