diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7eef143..6aa4919 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.3.1] - 2025-12-18
+
+### Fixed
+- Fixed "Invalid handler specified" error during integration configuration by renaming config flow handler class from `HomebridgeUpdateFlowHandler` to `ConfigFlowHandler` to follow Home Assistant naming conventions
+- Removed deprecated `CONNECTION_CLASS` class attribute from config flow handler
+
+### Changed
+- Updated manifest.json version to 0.3.1
+- Updated hacs.json version to 0.3.1
+
 ## [0.3.0] - 2025-12-11
 
 ### Added
diff --git a/custom_components/homebridge_monitor/config_flow.py b/custom_components/homebridge_monitor/config_flow.py
index 30cc3ff..e57b1d0 100644
--- a/custom_components/homebridge_monitor/config_flow.py
+++ b/custom_components/homebridge_monitor/config_flow.py
@@ -40,12 +40,11 @@
 )
 
 
-class HomebridgeUpdateFlowHandler(config_entries.ConfigFlow):
+class ConfigFlowHandler(config_entries.ConfigFlow):
     """Handle a config flow for homebridge_monitor, including reauth."""
 
     VERSION = 1
     DOMAIN = DOMAIN
-    CONNECTION_CLASS = config_entries.CONN_CLASS_LOCAL_POLL
 
     def __init__(self) -> None:
         """Initialize flow state."""
diff --git a/custom_components/homebridge_monitor/manifest.json b/custom_components/homebridge_monitor/manifest.json
index f436d8f..3ea2a88 100644
--- a/custom_components/homebridge_monitor/manifest.json
+++ b/custom_components/homebridge_monitor/manifest.json
@@ -6,5 +6,5 @@
   "documentation": "https://github.com/Geek-MD/Homebridge_Monitor",
   "iot_class": "local_polling",
   "requirements": [],
-  "version": "0.3.0"
+  "version": "0.3.1"
 }
diff --git a/hacs.json b/hacs.json
index 61acb2c..050b77c 100644
--- a/hacs.json
+++ b/hacs.json
@@ -10,6 +10,6 @@
   "tags": ["homebridge", "monitor", "updates", "plugins"],
   "authors": ["Geek-MD"],
   "domains": ["binary_sensor"],
-  "version": "0.3.0",
+  "version": "0.3.1",
   "repo_url": "https://github.com/Geek-MD/Homebridge_Monitor"
 }