diff --git a/README.md b/README.md
index 5b4a37f..b406ca7 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Ferroamp MQTT support sends updates to these topics:
  * extapi/data/esm (interval 60s)
 
 ## Prerequisites
-- Home assistant `2021.12`
+- Home assistant `2022.12.x`
 - Enable Ferroamp MQTT by contacting [Ferroamp Support](https://ferroamp.com/sv/kontakt/) to get the username and password for your Energy MQTT broker.
 - Enable MQTT in Home assistant and set the broker to your Ferroamp Energy IP and configure it with your username and password received from Ferroamp (or setup a bridge-connection if you already have an MQTT-server, see the `Configuring Bridges`-section in the [Mosquitto documentation](https://mosquitto.org/man/mosquitto-conf-5.html)).
 
diff --git a/custom_components/ferroamp/__init__.py b/custom_components/ferroamp/__init__.py
index 9414c64..6b966da 100644
--- a/custom_components/ferroamp/__init__.py
+++ b/custom_components/ferroamp/__init__.py
@@ -52,6 +52,15 @@ async def async_unload_entry(hass, entry):
 
 
 async def async_setup(hass: core.HomeAssistant, config: dict) -> bool:
+    # Make sure MQTT is available and the entry is loaded
+    if not hass.config_entries.async_entries(
+            mqtt.DOMAIN
+    ) or not await hass.config_entries.async_wait_component(
+        hass.config_entries.async_entries(mqtt.DOMAIN)[0]
+    ):
+        _LOGGER.error("MQTT integration is not available")
+        return False
+
     _LOGGER.debug("Setting up ferroamp battery service calls")
     hass.data.setdefault(DOMAIN, {})
     device_registry = dr.async_get(hass)
diff --git a/hacs.json b/hacs.json
index 6885db7..79a8fe9 100644
--- a/hacs.json
+++ b/hacs.json
@@ -1,4 +1,4 @@
 {
   "name": "Ferroamp Sensors",
-  "homeassistant": "2022.8.0b0"
+  "homeassistant": "2022.12.0b0"
 }
diff --git a/requirements.test.txt b/requirements.test.txt
index 1d895b5..0ea09db 100644
--- a/requirements.test.txt
+++ b/requirements.test.txt
@@ -1,5 +1,5 @@
 # Strictly for tests
-pytest-homeassistant-custom-component==0.10.2
+pytest-homeassistant-custom-component==0.12.27
 janus==1.0.0
 # From our manifest.json for our custom component
 aiohttp_cors==0.7.0
diff --git a/tests/test_init.py b/tests/test_init.py
index 38cc74b..8f38ac6 100644
--- a/tests/test_init.py
+++ b/tests/test_init.py
@@ -9,7 +9,7 @@
 from homeassistant.helpers import device_registry
 from pytest_homeassistant_custom_component.common import async_fire_mqtt_message, MockConfigEntry
 
-from custom_components.ferroamp import ATTR_POWER, ATTR_TARGET
+from custom_components.ferroamp import ATTR_POWER, ATTR_TARGET, async_setup
 from custom_components.ferroamp.const import DOMAIN, CONF_INTERVAL, DATA_DEVICES, DATA_PREFIXES, DATA_LISTENERS
 
 
@@ -32,6 +32,12 @@ def create_config(name="Ferroamp", prefix="extapi", unique_id="ferroamp"):
     )
 
 
+async def test_no_mqtt(hass, caplog):
+    result = await async_setup(hass, {})
+    assert not result
+    assert "MQTT integration is not available" in caplog.text
+
+
 async def test_unload(hass, mqtt_mock):
     config_entry = create_config()
     config_entry.add_to_hass(hass)