diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93db6c2..df91cbf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 1.2.3 (2025-10-01)
+
+* Update WebRTC ver & code maintenance. (#41)
+
 ## 1.2.2+hotfix.1 (2025-06-30)
 
 * Fixed: TranscriptionContext clean up (#36)
diff --git a/analysis_options.yaml b/analysis_options.yaml
index f9517a1..b13dcec 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -1,6 +1,11 @@
 include: package:flutter_lints/flutter.yaml
 
 analyzer:
+  language:
+    strict-casts: true
+    strict-inference: true
+    strict-raw-types: true
+
   errors:
     constant_identifier_names: ignore
     no_wildcard_variable_uses: ignore
@@ -14,6 +19,7 @@ linter:
     prefer_final_locals: true
     unnecessary_brace_in_string_interps: false
     avoid_print: true
+    depend_on_referenced_packages: true
 
     # Enforce this for correct async logic
     unawaited_futures: true
diff --git a/example/macos/Podfile b/example/macos/Podfile
index c795730..b52666a 100644
--- a/example/macos/Podfile
+++ b/example/macos/Podfile
@@ -1,4 +1,4 @@
-platform :osx, '10.14'
+platform :osx, '10.15'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'
diff --git a/example/macos/Runner.xcodeproj/project.pbxproj b/example/macos/Runner.xcodeproj/project.pbxproj
index fe44e6d..48a8af9 100644
--- a/example/macos/Runner.xcodeproj/project.pbxproj
+++ b/example/macos/Runner.xcodeproj/project.pbxproj
@@ -557,7 +557,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MACOSX_DEPLOYMENT_TARGET = 10.15;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
 				SWIFT_COMPILATION_MODE = wholemodule;
@@ -639,7 +639,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MACOSX_DEPLOYMENT_TARGET = 10.15;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
@@ -689,7 +689,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MACOSX_DEPLOYMENT_TARGET = 10.15;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
 				SWIFT_COMPILATION_MODE = wholemodule;
diff --git a/example/pubspec.yaml b/example/pubspec.yaml
index cd7f8b4..de2adcf 100644
--- a/example/pubspec.yaml
+++ b/example/pubspec.yaml
@@ -27,6 +27,7 @@ dependencies:
 
   livekit_components:
     path: ..
+  livekit_client: ^2.5.4
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
diff --git a/lib/src/context/room_context.dart b/lib/src/context/room_context.dart
index b611347..8d70d07 100644
--- a/lib/src/context/room_context.dart
+++ b/lib/src/context/room_context.dart
@@ -145,7 +145,7 @@ class RoomContext extends ChangeNotifier with ChatContextMixin, TranscriptionCon
     if (connect && url != null && token != null) {
       _url = url;
       _token = token;
-      unawaited(this.connect(url: url, token: token).catchError((error, stack) {
+      unawaited(this.connect(url: url, token: token).catchError((Object error, StackTrace stack) {
         Debug.event('RoomContext: auto connect failed: $error');
         // Preserve original behavior by rethrowing after logging.
         throw error;
diff --git a/lib/src/ui/widgets/track/audio_visualizer_widget.dart b/lib/src/ui/widgets/track/audio_visualizer_widget.dart
index f1fe80a..f30ec8b 100644
--- a/lib/src/ui/widgets/track/audio_visualizer_widget.dart
+++ b/lib/src/ui/widgets/track/audio_visualizer_widget.dart
@@ -124,7 +124,7 @@ class _SoundWaveformWidgetState extends State<SoundWaveformWidget> with SingleTi
   sdk.EventsListener<sdk.ParticipantEvent>? _participantListener;
 
   // Agent support
-  sdk.AgentState _agentState = sdk.AgentState.INITIALIZING;
+  sdk.AgentState _agentState = sdk.AgentState.initializing;
 
   @override
   void didUpdateWidget(SoundWaveformWidget oldWidget) {
@@ -155,7 +155,7 @@ class _SoundWaveformWidgetState extends State<SoundWaveformWidget> with SingleTi
           if (!mounted) return;
           final agentAttributes = sdk.AgentAttributes.fromJson(e.attributes);
           setState(() {
-            _agentState = agentAttributes.lkAgentState ?? sdk.AgentState.INITIALIZING;
+            _agentState = agentAttributes.lkAgentState ?? sdk.AgentState.initializing;
           });
         });
       }
@@ -260,13 +260,13 @@ class _SoundWaveformWidgetState extends State<SoundWaveformWidget> with SingleTi
   }
 
   VisualizerState _determineState() {
-    if (widget.participant?.kind == sdk.ParticipantKind.AGENT && _agentState == sdk.AgentState.THINKING) {
+    if (widget.participant?.kind == sdk.ParticipantKind.AGENT && _agentState == sdk.AgentState.thinking) {
       return VisualizerState.thinking;
     }
 
     if (widget.participant == null ||
         widget.participant?.kind == sdk.ParticipantKind.AGENT &&
-            (_agentState == sdk.AgentState.INITIALIZING || _agentState == sdk.AgentState.LISTENING)) {
+            (_agentState == sdk.AgentState.initializing || _agentState == sdk.AgentState.listening)) {
       return VisualizerState.listening;
     }
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 3e36d96..3873a7b 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: livekit_components
 description: "Out-of-the-box flutter widgets for livekit client."
-version: 1.2.2+hotfix.1
+version: 1.2.3
 homepage: https://github.com/livekit/components-flutter
 
 environment:
@@ -10,7 +10,7 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  flutter_webrtc: 1.2.0
+  flutter_webrtc: 1.2.1
   livekit_client: ^2.4.9
   chat_bubbles: ^1.6.0
   collection: ^1.19.0