diff --git a/homeassistant/components/airzone/manifest.json b/homeassistant/components/airzone/manifest.json
index 991584dd8f8..d55ffd187fd 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==0.5.5"]
+  "requirements": ["aioairzone==0.5.6"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 6357efbf5a0..fd8cdbdcdd0 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -116,7 +116,7 @@ aio_georss_gdacs==0.8
 aioairq==0.2.4
 
 # homeassistant.components.airzone
-aioairzone==0.5.5
+aioairzone==0.5.6
 
 # homeassistant.components.ambient_station
 aioambient==2023.04.0
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 25f47998dce..8e9205bae67 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -106,7 +106,7 @@ aio_georss_gdacs==0.8
 aioairq==0.2.4
 
 # homeassistant.components.airzone
-aioairzone==0.5.5
+aioairzone==0.5.6
 
 # homeassistant.components.ambient_station
 aioambient==2023.04.0
diff --git a/tests/components/airzone/test_config_flow.py b/tests/components/airzone/test_config_flow.py
index 2d89d0b556e..5460272e74e 100644
--- a/tests/components/airzone/test_config_flow.py
+++ b/tests/components/airzone/test_config_flow.py
@@ -45,6 +45,9 @@ async def test_form(hass: HomeAssistant) -> None:
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_hvac_systems",
         side_effect=SystemOutOfRange,
+    ), patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_version",
+        return_value=HVAC_VERSION_MOCK,
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_webserver",
         return_value=HVAC_WEBSERVER_MOCK,
@@ -88,6 +91,9 @@ async def test_form_invalid_system_id(hass: HomeAssistant) -> None:
     ) as mock_hvac, patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_hvac_systems",
         side_effect=SystemOutOfRange,
+    ), patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_version",
+        return_value=HVAC_VERSION_MOCK,
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_webserver",
         side_effect=InvalidMethod,
@@ -184,6 +190,9 @@ async def test_dhcp_flow(hass: HomeAssistant) -> None:
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_hvac_systems",
         side_effect=SystemOutOfRange,
+    ), patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_version",
+        return_value=HVAC_VERSION_MOCK,
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_webserver",
         return_value=HVAC_WEBSERVER_MOCK,
@@ -259,6 +268,9 @@ async def test_dhcp_connection_error(hass: HomeAssistant) -> None:
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_hvac_systems",
         side_effect=SystemOutOfRange,
+    ), patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_version",
+        return_value=HVAC_VERSION_MOCK,
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_webserver",
         return_value=HVAC_WEBSERVER_MOCK,
@@ -309,6 +321,9 @@ async def test_dhcp_invalid_system_id(hass: HomeAssistant) -> None:
     ) as mock_hvac, patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_hvac_systems",
         side_effect=SystemOutOfRange,
+    ), patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_version",
+        return_value=HVAC_VERSION_MOCK,
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_webserver",
         side_effect=InvalidMethod,
diff --git a/tests/components/airzone/test_coordinator.py b/tests/components/airzone/test_coordinator.py
index c2ee5c0cbca..bcfdad8ead8 100644
--- a/tests/components/airzone/test_coordinator.py
+++ b/tests/components/airzone/test_coordinator.py
@@ -10,7 +10,7 @@ from homeassistant.const import STATE_UNAVAILABLE
 from homeassistant.core import HomeAssistant
 from homeassistant.util.dt import utcnow
 
-from .util import CONFIG, HVAC_MOCK
+from .util import CONFIG, HVAC_MOCK, HVAC_VERSION_MOCK
 
 from tests.common import MockConfigEntry, async_fire_time_changed
 
@@ -31,6 +31,9 @@ async def test_coordinator_client_connector_error(hass: HomeAssistant) -> None:
     ) as mock_hvac, patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_hvac_systems",
         side_effect=SystemOutOfRange,
+    ), patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_version",
+        return_value=HVAC_VERSION_MOCK,
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_webserver",
         side_effect=InvalidMethod,
diff --git a/tests/components/airzone/test_diagnostics.py b/tests/components/airzone/test_diagnostics.py
index 34a563b7af8..2fa5a7d566a 100644
--- a/tests/components/airzone/test_diagnostics.py
+++ b/tests/components/airzone/test_diagnostics.py
@@ -7,6 +7,7 @@ from aioairzone.const import (
     API_MAC,
     API_SYSTEM_ID,
     API_SYSTEMS,
+    API_VERSION,
     API_WIFI_RSSI,
     AZD_ID,
     AZD_MASTER,
@@ -15,6 +16,7 @@ from aioairzone.const import (
     AZD_ZONES,
     AZD_ZONES_NUM,
     RAW_HVAC,
+    RAW_VERSION,
     RAW_WEBSERVER,
 )
 
@@ -23,7 +25,13 @@ from homeassistant.components.diagnostics import REDACTED
 from homeassistant.const import CONF_HOST, CONF_PORT
 from homeassistant.core import HomeAssistant
 
-from .util import CONFIG, HVAC_MOCK, HVAC_WEBSERVER_MOCK, async_init_integration
+from .util import (
+    CONFIG,
+    HVAC_MOCK,
+    HVAC_VERSION_MOCK,
+    HVAC_WEBSERVER_MOCK,
+    async_init_integration,
+)
 
 from tests.components.diagnostics import get_diagnostics_for_config_entry
 from tests.typing import ClientSessionGenerator
@@ -41,6 +49,7 @@ async def test_config_entry_diagnostics(
         "homeassistant.components.airzone.AirzoneLocalApi.raw_data",
         return_value={
             RAW_HVAC: HVAC_MOCK,
+            RAW_VERSION: HVAC_VERSION_MOCK,
             RAW_WEBSERVER: HVAC_WEBSERVER_MOCK,
         },
     ):
@@ -53,6 +62,13 @@ async def test_config_entry_diagnostics(
         }.items()
     )
 
+    assert (
+        diag["api_data"][RAW_VERSION].items()
+        >= {
+            API_VERSION: HVAC_VERSION_MOCK[API_VERSION],
+        }.items()
+    )
+
     assert (
         diag["api_data"][RAW_WEBSERVER].items()
         >= {
diff --git a/tests/components/airzone/test_init.py b/tests/components/airzone/test_init.py
index 274ceb21d51..bb7cb06d1c2 100644
--- a/tests/components/airzone/test_init.py
+++ b/tests/components/airzone/test_init.py
@@ -9,7 +9,7 @@ from homeassistant.config_entries import ConfigEntryState
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import entity_registry as er
 
-from .util import CONFIG, HVAC_MOCK, HVAC_WEBSERVER_MOCK
+from .util import CONFIG, HVAC_MOCK, HVAC_VERSION_MOCK, HVAC_WEBSERVER_MOCK
 
 from tests.common import MockConfigEntry
 
@@ -28,6 +28,9 @@ async def test_unique_id_migrate(hass: HomeAssistant) -> None:
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_hvac_systems",
         side_effect=SystemOutOfRange,
+    ), patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_version",
+        return_value=HVAC_VERSION_MOCK,
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_webserver",
         side_effect=InvalidMethod,
@@ -47,6 +50,9 @@ async def test_unique_id_migrate(hass: HomeAssistant) -> None:
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_hvac_systems",
         side_effect=SystemOutOfRange,
+    ), patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_version",
+        return_value=HVAC_VERSION_MOCK,
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_webserver",
         return_value=HVAC_WEBSERVER_MOCK,
diff --git a/tests/components/airzone/util.py b/tests/components/airzone/util.py
index 1f7bbd5bd88..4afcaeac232 100644
--- a/tests/components/airzone/util.py
+++ b/tests/components/airzone/util.py
@@ -306,6 +306,9 @@ async def async_init_integration(
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_hvac_systems",
         return_value=HVAC_SYSTEMS_MOCK,
+    ), patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_version",
+        return_value=HVAC_VERSION_MOCK,
     ), patch(
         "homeassistant.components.airzone.AirzoneLocalApi.get_webserver",
         return_value=HVAC_WEBSERVER_MOCK,