diff --git a/homeassistant/components/vallox/__init__.py b/homeassistant/components/vallox/__init__.py
index ce40e07e294..c98e2685118 100644
--- a/homeassistant/components/vallox/__init__.py
+++ b/homeassistant/components/vallox/__init__.py
@@ -5,7 +5,7 @@ from dataclasses import dataclass, field
 from datetime import date
 import ipaddress
 import logging
-from typing import Any, NamedTuple, cast
+from typing import Any, NamedTuple
 from uuid import UUID
 
 from vallox_websocket_api import PROFILE as VALLOX_PROFILE, Vallox, ValloxApiException
@@ -125,7 +125,7 @@ class ValloxState:
     @property
     def model(self) -> str | None:
         """Return the model, if any."""
-        model = cast(str, _api_get_model(self.metric_cache))
+        model = _api_get_model(self.metric_cache)
 
         if model == "Unknown":
             return None
diff --git a/homeassistant/components/vallox/manifest.json b/homeassistant/components/vallox/manifest.json
index c06bc036e4e..b45a2d598c9 100644
--- a/homeassistant/components/vallox/manifest.json
+++ b/homeassistant/components/vallox/manifest.json
@@ -6,5 +6,5 @@
   "documentation": "https://www.home-assistant.io/integrations/vallox",
   "iot_class": "local_polling",
   "loggers": ["vallox_websocket_api"],
-  "requirements": ["vallox-websocket-api==4.0.2"]
+  "requirements": ["vallox-websocket-api==4.0.3"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index cdf97a57504..8c1abd6ad32 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2745,7 +2745,7 @@ uvcclient==0.11.0
 vacuum-map-parser-roborock==0.1.1
 
 # homeassistant.components.vallox
-vallox-websocket-api==4.0.2
+vallox-websocket-api==4.0.3
 
 # homeassistant.components.rdw
 vehicle==2.2.1
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 9f8daba5708..3fb7844baa9 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -2080,7 +2080,7 @@ uvcclient==0.11.0
 vacuum-map-parser-roborock==0.1.1
 
 # homeassistant.components.vallox
-vallox-websocket-api==4.0.2
+vallox-websocket-api==4.0.3
 
 # homeassistant.components.rdw
 vehicle==2.2.1