diff --git a/homeassistant/components/airzone/manifest.json b/homeassistant/components/airzone/manifest.json
index 01fde7eb2fb..95ed9d200f4 100644
--- a/homeassistant/components/airzone/manifest.json
+++ b/homeassistant/components/airzone/manifest.json
@@ -11,5 +11,5 @@
   "documentation": "https://www.home-assistant.io/integrations/airzone",
   "iot_class": "local_polling",
   "loggers": ["aioairzone"],
-  "requirements": ["aioairzone==0.9.7"]
+  "requirements": ["aioairzone==0.9.9"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 4804e883b2b..0745febf94e 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -182,7 +182,7 @@ aioairq==0.4.3
 aioairzone-cloud==0.6.10
 
 # homeassistant.components.airzone
-aioairzone==0.9.7
+aioairzone==0.9.9
 
 # homeassistant.components.ambient_network
 # homeassistant.components.ambient_station
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index c1331477997..9cb0bf97942 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -170,7 +170,7 @@ aioairq==0.4.3
 aioairzone-cloud==0.6.10
 
 # homeassistant.components.airzone
-aioairzone==0.9.7
+aioairzone==0.9.9
 
 # homeassistant.components.ambient_network
 # homeassistant.components.ambient_station
diff --git a/tests/components/airzone/snapshots/test_diagnostics.ambr b/tests/components/airzone/snapshots/test_diagnostics.ambr
index fb4f6530b1e..bb44a0abeb1 100644
--- a/tests/components/airzone/snapshots/test_diagnostics.ambr
+++ b/tests/components/airzone/snapshots/test_diagnostics.ambr
@@ -140,6 +140,7 @@
                 'heatStages': 1,
                 'heatangle': 0,
                 'humidity': 40,
+                'master_zoneID': None,
                 'maxTemp': 30,
                 'minTemp': 15,
                 'mode': 3,
diff --git a/tests/components/airzone/util.py b/tests/components/airzone/util.py
index 278663b7a97..b51dfb890e4 100644
--- a/tests/components/airzone/util.py
+++ b/tests/components/airzone/util.py
@@ -28,6 +28,7 @@ from aioairzone.const import (
     API_HEAT_STAGES,
     API_HUMIDITY,
     API_MAC,
+    API_MASTER_ZONE_ID,
     API_MAX_TEMP,
     API_MIN_TEMP,
     API_MODE,
@@ -214,6 +215,7 @@ HVAC_MOCK = {
                     API_FLOOR_DEMAND: 0,
                     API_HEAT_ANGLE: 0,
                     API_COLD_ANGLE: 0,
+                    API_MASTER_ZONE_ID: None,
                 },
             ]
         },