diff --git a/CHANGELOG.md b/CHANGELOG.md
index f03db1a..cefe656 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,16 +1,20 @@
-## [1.0.3] - 2021-12-22
+## [1.0.4] - 2023-01-26
+
+* feat: Added FutureOr in AsyncResult.Map
+
+## [1.0.3] - 2022-12-22
 
 * fix: AsyncResult recover
 
-## [1.0.2] - 2021-12-18
+## [1.0.2] - 2022-12-18
 
 * fix: separed functions.dart import
 
-## [1.0.1] - 2021-12-17
+## [1.0.1] - 2022-12-17
 
 * fix: recover operator return a `Result` instead a `Failure`.
 
-## [1.0.0+2] - 2021-12-16
+## [1.0.0+2] - 2022-12-16
 
 * Initial release
 
diff --git a/lib/src/async_result.dart b/lib/src/async_result.dart
index 11dbb3f..4e929cf 100644
--- a/lib/src/async_result.dart
+++ b/lib/src/async_result.dart
@@ -26,8 +26,17 @@ extension AsyncResultExtension<S extends Object, F extends Object> //
 
   /// Returns a new `AsyncResult`, mapping any `Success` value
   /// using the given transformation.
-  AsyncResult<W, F> map<W extends Object>(W Function(S success) fn) {
-    return then((result) => result.map(fn));
+  AsyncResult<W, F> map<W extends Object>(FutureOr<W> Function(S success) fn) {
+    return then(
+      (result) => result.map(fn).fold(
+        (success) async {
+          return Success(await success);
+        },
+        (failure) {
+          return Failure(failure);
+        },
+      ),
+    );
   }
 
   /// Returns a new `Result`, mapping any `Error` value
diff --git a/pubspec.yaml b/pubspec.yaml
index 08e80db..158b205 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: result_dart
 description: Result for dart. It is an implementation based on Kotlin Result and Swift Result.
-version: 1.0.3
+version: 1.0.4
 repository: https://github.com/Flutterando/result_dart
 
 environment:
diff --git a/test/src/async_result_test.dart b/test/src/async_result_test.dart
index ed5da76..07e986a 100644
--- a/test/src/async_result_test.dart
+++ b/test/src/async_result_test.dart
@@ -41,6 +41,7 @@ void main() {
         .map((success) => success * 2);
 
     expect(result.getOrNull(), 2);
+    expect(const Failure(2).toAsyncResult().map(identity), completes);
   });
 
   test('mapError', () async {