diff --git a/CHANGELOG.md b/CHANGELOG.md
index 61034ed..be75504 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 0.3.3
+
+* fix set playWhenReady to false in initialized state may cause wrong player state.
+* support set/get volume.
+
 ## 0.3.2
 
 * fix video stream is attached pic make player state can not transfer to ready state.
diff --git a/README.md b/README.md
index a0dbf30..90cb64f 100644
--- a/README.md
+++ b/README.md
@@ -30,9 +30,9 @@ A simple audio player plugin for flutter.
 #### Build for Flutter
 
 * `flutter pub get`.
-* if build for macos/ios
+* if build for macOS/iOS
     1. go to `example/macos` or `example/ios` run `pod install` to install `ffmpeg-kit`
-    2. go to `lychee_cpp`, run `./apple-flutter-install.sh macos` or `./apple-flutter-install.sh ios`
+    2. go to `ffplayer`, run `./apple-flutter-install.sh macos` or `./apple-flutter-install.sh ios`
 
 * `flutter run -d your_device`
 
diff --git a/pubspec.yaml b/pubspec.yaml
index f2844ab..f720da1 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: lychee_player
 description: A simple audio player plugin for flutter.
-version: 0.3.2
+version: 0.3.3
 repository: https://github.com/boyan01/lychee_player
 
 environment: