diff --git a/homeassistant/components/bang_olufsen/manifest.json b/homeassistant/components/bang_olufsen/manifest.json
index a87c233186ca..14043341ecff 100644
--- a/homeassistant/components/bang_olufsen/manifest.json
+++ b/homeassistant/components/bang_olufsen/manifest.json
@@ -6,6 +6,6 @@
   "documentation": "https://www.home-assistant.io/integrations/bang_olufsen",
   "integration_type": "device",
   "iot_class": "local_push",
-  "requirements": ["mozart-api==5.1.0.247.1"],
+  "requirements": ["mozart-api==5.3.1.108.0"],
   "zeroconf": ["_bangolufsen._tcp.local."]
 }
diff --git a/homeassistant/components/bang_olufsen/media_player.py b/homeassistant/components/bang_olufsen/media_player.py
index 400a00e199b8..bd1f1178053e 100644
--- a/homeassistant/components/bang_olufsen/media_player.py
+++ b/homeassistant/components/bang_olufsen/media_player.py
@@ -583,7 +583,7 @@ class BeoMediaPlayer(BeoEntity, MediaPlayerEntity):
         for sound_mode in sound_modes:
             label = f"{sound_mode.name} ({sound_mode.id})"
 
-            self._sound_modes[label] = sound_mode.id
+            self._sound_modes[label] = cast(int, sound_mode.id)
 
             if sound_mode.id == active_sound_mode.id:
                 self._attr_sound_mode = label
diff --git a/requirements_all.txt b/requirements_all.txt
index 202da9e4bdb4..604a08964713 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1509,7 +1509,7 @@ motionblindsble==0.1.3
 motioneye-client==0.3.14
 
 # homeassistant.components.bang_olufsen
-mozart-api==5.1.0.247.1
+mozart-api==5.3.1.108.0
 
 # homeassistant.components.mullvad
 mullvad-api==1.0.0
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index c4d5b31aa002..5b14fa4a0248 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1316,7 +1316,7 @@ motionblindsble==0.1.3
 motioneye-client==0.3.14
 
 # homeassistant.components.bang_olufsen
-mozart-api==5.1.0.247.1
+mozart-api==5.3.1.108.0
 
 # homeassistant.components.mullvad
 mullvad-api==1.0.0