diff --git a/custom_components/mypyllant/manifest.json b/custom_components/mypyllant/manifest.json
index 77f80e6..c239c43 100644
--- a/custom_components/mypyllant/manifest.json
+++ b/custom_components/mypyllant/manifest.json
@@ -10,7 +10,7 @@
   "iot_class": "cloud_polling",
   "issue_tracker": "https://github.com/signalkraft/mypyllant-component/issues",
   "requirements": [
-    "myPyllant==0.7.8"
+    "myPyllant==0.7.9"
   ],
   "version": "v0.7.3"
 }
diff --git a/custom_components/mypyllant/sensor.py b/custom_components/mypyllant/sensor.py
index 3da87a3..e9d5db9 100644
--- a/custom_components/mypyllant/sensor.py
+++ b/custom_components/mypyllant/sensor.py
@@ -111,9 +111,10 @@ async def create_system_sensors(
             sensors.append(
                 ZoneHeatingOperatingModeSensor(index, zone_index, system_coordinator)
             )
-            sensors.append(
-                ZoneHeatingStateSensor(index, zone_index, system_coordinator)
-            )
+            if zone.heating_state is not None:
+                sensors.append(
+                    ZoneHeatingStateSensor(index, zone_index, system_coordinator)
+                )
             sensors.append(
                 ZoneCurrentSpecialFunctionSensor(index, zone_index, system_coordinator)
             )
diff --git a/dev-requirements.txt b/dev-requirements.txt
index d852688..d8609fc 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -15,5 +15,5 @@ types-PyYAML~=6.0.12.12
 pytest==7.4.3
 pytest-cov==4.1.0
 pytest-homeassistant-custom-component==0.13.77
-myPyllant==0.7.8
+myPyllant==0.7.9
 dacite~=1.7.0
\ No newline at end of file