diff --git a/custom_components/iaquk/__init__.py b/custom_components/iaquk/__init__.py
index be2e5fc..dcc2245 100644
--- a/custom_components/iaquk/__init__.py
+++ b/custom_components/iaquk/__init__.py
@@ -25,7 +25,7 @@
 from homeassistant.core import State, callback
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
-from homeassistant.helpers.event import async_track_state_change
+from homeassistant.helpers.event import async_track_state_change_event
 from homeassistant.util.unit_conversion import TemperatureConverter
 
 from .const import (
@@ -198,7 +198,7 @@ def sensor_startup(event):
                 ", ".join(entity_ids),
             )
 
-            async_track_state_change(self.hass, entity_ids, sensor_state_listener)
+            async_track_state_change_event(self.hass, entity_ids, sensor_state_listener)
             sensor_state_listener(None, None, None)  # Force first update
 
         if not self._added:
diff --git a/custom_components/iaquk/const.py b/custom_components/iaquk/const.py
index 206e11d..216f78a 100644
--- a/custom_components/iaquk/const.py
+++ b/custom_components/iaquk/const.py
@@ -6,7 +6,7 @@
 # Base component constants
 NAME: Final = "Indoor Air Quality UK Index"
 DOMAIN: Final = "iaquk"
-VERSION: Final = "1.6.8"
+VERSION: Final = "1.6.9-alpha"
 ISSUE_URL: Final = "https://github.com/Limych/ha-iaquk/issues"
 
 STARTUP_MESSAGE: Final = f"""
diff --git a/custom_components/iaquk/manifest.json b/custom_components/iaquk/manifest.json
index ce094b5..40c239a 100644
--- a/custom_components/iaquk/manifest.json
+++ b/custom_components/iaquk/manifest.json
@@ -10,5 +10,5 @@
     "iot_class": "calculated",
     "issue_tracker": "https://github.com/Limych/ha-iaquk/issues",
     "requirements": [],
-    "version": "1.6.8"
+    "version": "1.6.9-alpha"
 }
\ No newline at end of file