diff --git a/Assets/UniRx.Async/package.json b/Assets/UniRx.Async/package.json
index ff5b17b..26b1eba 100644
--- a/Assets/UniRx.Async/package.json
+++ b/Assets/UniRx.Async/package.json
@@ -1,7 +1,7 @@
 {
     "name": "com.cysharp.unitask",
     "displayName": "UniTask",
-    "version": "1.3.0",
+    "version": "1.3.1",
     "unity": "2018.3",
     "description": "Provides an efficient async/await integration to Unity.",
     "keywords": ["async/await", "async", "Task", "UniTask"],
diff --git a/README.md b/README.md
index 4a0b4d6..9ee782a 100644
--- a/README.md
+++ b/README.md
@@ -352,7 +352,7 @@ After Unity 2019.3.4f1, Unity 2020.1a21, that support path query parameter of gi
 
 or add `"com.cysharp.unitask": "https://github.com/Cysharp/UniTask.git?path=Assets/UniRx.Async"` to `Packages/manifest.json`.
 
-If you want to set a target version, UniTask is using `*.*.*` release tag so you can specify a version like `#1.3.0`. For example `https://github.com/Cysharp/UniTask.git?path=Assets/UniRx.Async#1.3.0`.
+If you want to set a target version, UniTask is using `*.*.*` release tag so you can specify a version like `#1.3.0`. For example `https://github.com/Cysharp/UniTask.git?path=Assets/UniRx.Async#1.3.1`.
 
 License
 ---