diff --git a/homeassistant/components/vallox/__init__.py b/homeassistant/components/vallox/__init__.py
index 1feda8e694a..ce40e07e294 100644
--- a/homeassistant/components/vallox/__init__.py
+++ b/homeassistant/components/vallox/__init__.py
@@ -135,7 +135,7 @@ class ValloxState:
     @property
     def sw_version(self) -> str:
         """Return the SW version."""
-        return cast(str, _api_get_sw_version(self.metric_cache))
+        return _api_get_sw_version(self.metric_cache)
 
     @property
     def uuid(self) -> UUID | None:
diff --git a/homeassistant/components/vallox/manifest.json b/homeassistant/components/vallox/manifest.json
index 479c84d238c..c06bc036e4e 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==3.3.0"]
+  "requirements": ["vallox-websocket-api==4.0.2"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 56f7aaf3511..15843840744 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2658,7 +2658,7 @@ url-normalize==1.4.3
 uvcclient==0.11.0
 
 # homeassistant.components.vallox
-vallox-websocket-api==3.3.0
+vallox-websocket-api==4.0.2
 
 # homeassistant.components.rdw
 vehicle==2.0.0
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index c7e0dc73ff4..d9ec8538fd4 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1976,7 +1976,7 @@ url-normalize==1.4.3
 uvcclient==0.11.0
 
 # homeassistant.components.vallox
-vallox-websocket-api==3.3.0
+vallox-websocket-api==4.0.2
 
 # homeassistant.components.rdw
 vehicle==2.0.0
diff --git a/tests/components/vallox/test_switch.py b/tests/components/vallox/test_switch.py
index 95232045af1..4739e6c4645 100644
--- a/tests/components/vallox/test_switch.py
+++ b/tests/components/vallox/test_switch.py
@@ -1,4 +1,6 @@
 """Tests for Vallox switch platform."""
+from unittest.mock import patch
+
 import pytest
 
 from homeassistant.components.switch.const import DOMAIN as SWITCH_DOMAIN
@@ -30,7 +32,9 @@ async def test_switch_entities(
     metrics = {metric_key: value}
 
     # Act
-    with patch_metrics(metrics=metrics):
+    with patch_metrics(metrics=metrics), patch(
+        "homeassistant.components.vallox.Vallox.set_settable_address"
+    ):
         await hass.config_entries.async_setup(mock_entry.entry_id)
         await hass.async_block_till_done()
 
@@ -56,7 +60,9 @@ async def test_bypass_lock_switch_entitity_set(
 ) -> None:
     """Test bypass lock switch set."""
     # Act
-    with patch_metrics(metrics={}), patch_metrics_set() as metrics_set:
+    with patch_metrics(metrics={}), patch_metrics_set() as metrics_set, patch(
+        "homeassistant.components.vallox.Vallox.set_settable_address"
+    ):
         await hass.config_entries.async_setup(mock_entry.entry_id)
         await hass.async_block_till_done()
         await hass.services.async_call(