diff --git a/Directory.Build.props b/Directory.Build.props
index 837783e..7af096f 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,7 +1,7 @@
 <Project>
     <PropertyGroup>
         <!-- NuGet Packaging -->
-        <PackageVersion>0.27.1</PackageVersion>
+        <PackageVersion>0.28.0</PackageVersion>
         <Authors>hadashiA</Authors>
         <PackageProjectUrl>https://github.com/hadashiA/VYaml</PackageProjectUrl>
         <RepositoryUrl>$(PackageProjectUrl)</RepositoryUrl>
diff --git a/README.md b/README.md
index 6632adc..603e6f3 100644
--- a/README.md
+++ b/README.md
@@ -69,7 +69,7 @@ Require Unity 2021.3 or later.
 If you are using a version of Unity newer than 2022.2, you can install as the Unity package manager at the following git URL;
 
 ```
-https://github.com/hadashiA/VYaml.git?path=VYaml.Unity/Assets/VYaml#0.27.1
+https://github.com/hadashiA/VYaml.git?path=VYaml.Unity/Assets/VYaml#0.28.0
 ```
 
 > [!IMPORTANT]  
diff --git a/VYaml.Unity/Assets/VYaml/package.json b/VYaml.Unity/Assets/VYaml/package.json
index 21501b4..b7c3a58 100644
--- a/VYaml.Unity/Assets/VYaml/package.json
+++ b/VYaml.Unity/Assets/VYaml/package.json
@@ -1,7 +1,7 @@
 {
   "name": "jp.hadashikick.vyaml",
   "displayName": "VYaml",
-  "version": "0.27.1",
+  "version": "0.28.0",
   "unity": "2021.3",
   "description": "The extra fast YAML library",
   "keywords": ["yaml", "serialization", "parser"],