diff --git a/homeassistant/components/xs1/climate.py b/homeassistant/components/xs1/climate.py
index c57c0857817..60b6ca3c7c9 100644
--- a/homeassistant/components/xs1/climate.py
+++ b/homeassistant/components/xs1/climate.py
@@ -119,5 +119,5 @@ class XS1ThermostatEntity(XS1DeviceEntity, ClimateEntity):
     async def async_update(self):
         """Also update the sensor when available."""
         await super().async_update()
-        if self.sensor is None:
+        if self.sensor is not None:
             await self.hass.async_add_executor_job(self.sensor.update)
diff --git a/homeassistant/components/xs1/manifest.json b/homeassistant/components/xs1/manifest.json
index e997953f7ac..164f571fade 100644
--- a/homeassistant/components/xs1/manifest.json
+++ b/homeassistant/components/xs1/manifest.json
@@ -2,6 +2,6 @@
   "domain": "xs1",
   "name": "EZcontrol XS1",
   "documentation": "https://www.home-assistant.io/integrations/xs1",
-  "requirements": ["xs1-api-client==2.3.5"],
+  "requirements": ["xs1-api-client==3.0.0"],
   "codeowners": []
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 3bdc94ba2ba..20b8299c1a4 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2224,7 +2224,7 @@ xknx==0.11.3
 xmltodict==0.12.0
 
 # homeassistant.components.xs1
-xs1-api-client==2.3.5
+xs1-api-client==3.0.0
 
 # homeassistant.components.yandex_transport
 ya_ma==0.3.8