diff --git a/CHANGELOG.md b/CHANGELOG.md
index c4b8bb23..d25d2f0f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+Please see [here](https://github.com/hrntsm/Tunny/releases) for the data released for each version.
+
+## [0.1.1] -2022-04-17
+
+### Fixed
+
+- If there is no modelmesh input and use restore function, gh is crashed bug.
+
 ## [0.1.0] -2022-04-14
 
 ### Added
diff --git a/Tunny/Tunny.csproj b/Tunny/Tunny.csproj
index 701360c7..33c5607e 100644
--- a/Tunny/Tunny.csproj
+++ b/Tunny/Tunny.csproj
@@ -2,7 +2,7 @@
 	
   <PropertyGroup>
     <TargetFramework>net48</TargetFramework>
-    <Version>1.0</Version>
+    <Version>0.1.1</Version>
     <Title>Tunny</Title>
     <Description>Tunny is an optimization component wrapped in optuna.</Description>
     <TargetExt>.gha</TargetExt>