diff --git a/custom_components/auto_backup/__init__.py b/custom_components/auto_backup/__init__.py
index d6e280e..8f2b235 100644
--- a/custom_components/auto_backup/__init__.py
+++ b/custom_components/auto_backup/__init__.py
@@ -33,9 +33,7 @@
     EVENT_BACKUPS_PURGED,
     EVENT_BACKUP_SUCCESSFUL,
     EVENT_BACKUP_START,
-    UNSUB_LISTENER,
     DATA_AUTO_BACKUP,
-    DEFAULT_BACKUP_TIMEOUT_SECONDS,
     CONF_AUTO_PURGE,
     CONF_BACKUP_TIMEOUT,
     DEFAULT_BACKUP_TIMEOUT,
@@ -316,7 +314,7 @@ def validate_backup_config(self, config: Dict):
 
             if ATTR_INCLUDE in config or ATTR_EXCLUDE in config:
                 raise HomeAssistantError(
-                    f"Partial backups (e.g. include/exclude) are not supported on non-supervised installations."
+                    "Partial backups (e.g. include/exclude) are not supported on non-supervised installations."
                 )
 
             if config.get(ATTR_NAME):
diff --git a/custom_components/auto_backup/handlers.py b/custom_components/auto_backup/handlers.py
index 2188e8b..456c16f 100644
--- a/custom_components/auto_backup/handlers.py
+++ b/custom_components/auto_backup/handlers.py
@@ -6,7 +6,6 @@
 from typing import Dict, List, Optional
 
 import aiohttp
-import async_timeout
 from aiohttp.hdrs import AUTHORIZATION
 from homeassistant.components.backup import BackupManager
 from homeassistant.const import ATTR_NAME
@@ -79,7 +78,7 @@ async def send_command(self, command, method="post", payload=None, timeout=10):
         This method is a coroutine.
         """
         try:
-            with async_timeout.timeout(timeout):
+            async with asyncio.timeout(timeout):
                 request = await self._session.request(
                     method,
                     f"http://{self._ip}{command}",
@@ -95,7 +94,7 @@ async def send_command(self, command, method="post", payload=None, timeout=10):
                 answer = await request.json()
                 return answer
 
-        except asyncio.TimeoutError:
+        except TimeoutError:
             raise HassioAPIError("Timeout on %s request" % command)
 
         except aiohttp.ClientError as err:
@@ -131,7 +130,7 @@ async def download_backup(
         command = f"/backups/{slug}/download"
 
         try:
-            with async_timeout.timeout(timeout):
+            async with asyncio.timeout(timeout):
                 request = await self._session.request(
                     "get",
                     f"http://{self._ip}{command}",
@@ -153,7 +152,7 @@ async def download_backup(
                 _LOGGER.info("Downloaded backup '%s' to '%s'", slug, destination)
                 return
 
-        except asyncio.TimeoutError:
+        except TimeoutError:
             _LOGGER.error("Timeout on %s request", command)
 
         except aiohttp.ClientError as err:
diff --git a/hacs.json b/hacs.json
index be5f1e6..07fed50 100644
--- a/hacs.json
+++ b/hacs.json
@@ -3,5 +3,5 @@
   "zip_release": true,
   "hide_default_branch": true,
   "filename": "auto_backup.zip",
-  "homeassistant": "2022.4.0"
+  "homeassistant": "2023.4.0"
 }