diff --git a/homeassistant/components/wolflink/__init__.py b/homeassistant/components/wolflink/__init__.py
index 9a272c502a0..611fa7da315 100644
--- a/homeassistant/components/wolflink/__init__.py
+++ b/homeassistant/components/wolflink/__init__.py
@@ -2,7 +2,7 @@
 from datetime import timedelta
 import logging
 
-from httpcore import ConnectError
+from httpcore import ConnectError, ConnectTimeout
 from wolf_smartset.token_auth import InvalidAuth
 from wolf_smartset.wolf_client import WolfClient
 
@@ -99,7 +99,7 @@ async def fetch_parameters(client: WolfClient, gateway_id: int, device_id: int):
     try:
         fetched_parameters = await client.fetch_parameters(gateway_id, device_id)
         return [param for param in fetched_parameters if param.name != "Reglertyp"]
-    except ConnectError as exception:
+    except (ConnectError, ConnectTimeout) as exception:
         raise UpdateFailed(f"Error communicating with API: {exception}") from exception
     except InvalidAuth as exception:
-        raise UpdateFailed("Invalid authentication during update.") from exception
+        raise UpdateFailed("Invalid authentication during update") from exception
diff --git a/homeassistant/components/wolflink/manifest.json b/homeassistant/components/wolflink/manifest.json
index c188c090369..633318f2f62 100644
--- a/homeassistant/components/wolflink/manifest.json
+++ b/homeassistant/components/wolflink/manifest.json
@@ -3,6 +3,6 @@
   "name": "Wolf SmartSet Service",
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/wolflink",
-  "requirements": ["wolf_smartset==0.1.4"],
+  "requirements": ["wolf_smartset==0.1.6"],
   "codeowners": ["@adamkrol93"]
 }
diff --git a/homeassistant/components/wolflink/sensor.py b/homeassistant/components/wolflink/sensor.py
index 97f48e27988..1cae006824b 100644
--- a/homeassistant/components/wolflink/sensor.py
+++ b/homeassistant/components/wolflink/sensor.py
@@ -11,13 +11,6 @@ from wolf_smartset.models import (
     Temperature,
 )
 
-from homeassistant.components.wolflink.const import (
-    COORDINATOR,
-    DEVICE_ID,
-    DOMAIN,
-    PARAMETERS,
-    STATES,
-)
 from homeassistant.const import (
     DEVICE_CLASS_PRESSURE,
     DEVICE_CLASS_TEMPERATURE,
@@ -27,6 +20,8 @@ from homeassistant.const import (
 )
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
+from .const import COORDINATOR, DEVICE_ID, DOMAIN, PARAMETERS, STATES
+
 _LOGGER = logging.getLogger(__name__)
 
 
@@ -63,6 +58,7 @@ class WolfLinkSensor(CoordinatorEntity):
         super().__init__(coordinator)
         self.wolf_object = wolf_object
         self.device_id = device_id
+        self._state = None
 
     @property
     def name(self):
@@ -71,8 +67,10 @@ class WolfLinkSensor(CoordinatorEntity):
 
     @property
     def state(self):
-        """Return the state."""
-        return self.coordinator.data[self.wolf_object.value_id]
+        """Return the state. Wolf Client is returning only changed values so we need to store old value here."""
+        if self.wolf_object.value_id in self.coordinator.data:
+            self._state = self.coordinator.data[self.wolf_object.value_id]
+        return self._state
 
     @property
     def device_state_attributes(self):
@@ -151,7 +149,7 @@ class WolfLinkState(WolfLinkSensor):
     @property
     def state(self):
         """Return the state converting with supported values."""
-        state = self.coordinator.data[self.wolf_object.value_id]
+        state = super().state
         resolved_state = [
             item for item in self.wolf_object.items if item.value == int(state)
         ]
diff --git a/requirements_all.txt b/requirements_all.txt
index 0879d069f00..0c9c287be2e 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2262,7 +2262,7 @@ withings-api==2.1.6
 wled==0.4.4
 
 # homeassistant.components.wolflink
-wolf_smartset==0.1.4
+wolf_smartset==0.1.6
 
 # homeassistant.components.xbee
 xbee-helper==0.0.7
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index c7b33625fc1..3fe14f2404e 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1055,7 +1055,7 @@ withings-api==2.1.6
 wled==0.4.4
 
 # homeassistant.components.wolflink
-wolf_smartset==0.1.4
+wolf_smartset==0.1.6
 
 # homeassistant.components.bluesound
 # homeassistant.components.rest