diff --git a/CHANGELOG.md b/CHANGELOG.md
index d49d7fb..d41658d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Changelog
 
 ## 0.3.0 - 2020-06-07
-
 - ability to change button text
 - ability to use action button on detail view
+
+## 0.4.0 - 2020-06-19
+- ability to pass an instance of the action class instead of class name #9
diff --git a/README.md b/README.md
index 124731a..c3f3039 100644
--- a/README.md
+++ b/README.md
@@ -25,11 +25,12 @@ public function fields()
     return [
         ActionButton::make('Action')
             ->action(ChangeRole::class, $this->id)
+            //->action(new ChangeRole(), $this->id) using a new instance
     ];
 }
 ```
 
-The `action()` method requires two params - the action class name, and the target resource id.
+The `action()` method requires two params - the action class name or a new instance, and the target resource id.
 
 ## ![Basic example](images/basic_example.png)