diff --git a/README.md b/README.md
index 9724e4f..048b274 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ After rebooting Home Assistant, this integration can be configured through the i
 
 ### Required Versions
 
-- Home Assistant 2024.2.0 or newer
+- Home Assistant 2025.12.0 or newer
 
 ## Compatible Equipment
 
diff --git a/custom_components/tekmar_482/config_flow.py b/custom_components/tekmar_482/config_flow.py
index 3388003..912e31a 100644
--- a/custom_components/tekmar_482/config_flow.py
+++ b/custom_components/tekmar_482/config_flow.py
@@ -2,10 +2,12 @@
 
 from __future__ import annotations
 
+from typing import Any
+
 import homeassistant.helpers.config_validation as cv
 import voluptuous as vol
 from homeassistant import config_entries
-from homeassistant.config_entries import ConfigEntry
+from homeassistant.config_entries import ConfigEntry, OptionsFlow
 from homeassistant.const import CONF_HOST, CONF_NAME, CONF_PORT
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.data_entry_flow import FlowResult
@@ -37,9 +39,11 @@ class TekmarGatewayConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
 
     @staticmethod
     @callback
-    def async_get_options_flow(config_entry: ConfigEntry):
+    def async_get_options_flow(
+        config_entry: ConfigEntry,
+    ) -> TekmarGatewayOptionsFlowHandler:
         """Create the options flow for Tekmar Gateway 482."""
-        return TekmarGatewayOptionsFlowHandler(config_entry)
+        return TekmarGatewayOptionsFlowHandler()
 
     async def async_step_user(self, user_input=None) -> FlowResult:
         """Handle the initial step."""
@@ -84,14 +88,12 @@ async def async_step_user(self, user_input=None) -> FlowResult:
         )
 
 
-class TekmarGatewayOptionsFlowHandler(config_entries.OptionsFlow):
+class TekmarGatewayOptionsFlowHandler(OptionsFlow):
     """Handle an options flow for Tekmar Gateway 482."""
 
-    def __init__(self, config_entry: ConfigEntry):
-        """Initialize options flow."""
-        self.config_entry = config_entry
-
-    async def async_step_init(self, user_input=None) -> FlowResult:
+    async def async_step_init(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
         """Handle the initial options flow step."""
         errors = {}
 
diff --git a/hacs.json b/hacs.json
index da5173c..4a46f18 100644
--- a/hacs.json
+++ b/hacs.json
@@ -1,6 +1,6 @@
 {
   "name": "Tekmar Gateway 482",
   "content_in_root": false,
-  "homeassistant": "2024.2.0",
+  "homeassistant": "2025.12.0",
   "render_readme": false
 }