diff --git a/CHANGELOG.md b/CHANGELOG.md
index 84f241b..b1d3b20 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# v0.9.28-beta3
+
+optimize self wrapContent calculate.
+
 # v0.9.28-beta2
 
 fix a self wrapContent bug.
diff --git a/README.md b/README.md
index b3a21af..709c64d 100644
--- a/README.md
+++ b/README.md
@@ -125,12 +125,12 @@ dependencies:
   flutter_constraintlayout:
     git:
       url: 'https://github.com/hackware1993/Flutter-ConstraintLayout.git'
-      ref: 'v0.9.28-beta2'
+      ref: 'v0.9.28-beta3'
 ```
 
 ```yaml
 dependencies:
-  flutter_constraintlayout: ^0.9.28-beta2
+  flutter_constraintlayout: ^0.9.28-beta3
 ```
 
 ```dart
diff --git a/pubspec.yaml b/pubspec.yaml
index aea9e24..f6c6bb3 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: flutter_constraintlayout
 description: A super powerful Stack, build flexible layouts with constraints. Similar to ConstraintLayout for Android and AutoLayout for iOS.
-version: 0.9.28-beta2
+version: 0.9.28-beta3
 anthor: hackware
 homepage: https://github.com/hackware1993/Flutter-ConstraintLayout