diff --git a/CHANGELOG.md b/CHANGELOG.md
index e18b671..bba4662 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
+## [3.0.0+1] - [2021-04-06]
+* Fixed Dart Analysis 3 issues
+* Add DartDoc comments, remove useless code, and change variable names
+* README add to-do list
+
 ## [3.0.0] - [2021-04-02]
-Migrate to null safety.
+* Migrate to null safety.
 
 ## [2.1.0] - [2020-06-03]
 ### ✨ New Features
diff --git a/README.md b/README.md
index 16ee928..24a5b3d 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@ A custom is strong dropdown menu for Flutter. Easy to use and powerful for custo
 打开pubspec.yaml文件
 添加如下代码
 ``` dart
-  gzx_dropdown_menu : ^3.0.0
+  gzx_dropdown_menu: ^3.0.0+1
 ```
 添加后打开Terminal，执行flutter packages get
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 284d47b..e7315d8 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: gzx_dropdown_menu
 description: A custom is strong dropdown menu for Flutter. Easy to use and powerful for customization, it's up to you what you want to display in the dropdown menu!
-version: 3.0.0
+version: 3.0.0+1
 homepage: https://github.com/GanZhiXiong/gzx_dropdown_menu
 
 environment: