diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23330bd..675cdeb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## [v0.20.2](https://github.com/x-motemen/blogsync/compare/v0.20.1...v0.20.2) - 2023-11-25
+- use t.Setenv in testing by @Songmu in https://github.com/x-motemen/blogsync/pull/151
+
 ## [v0.20.1](https://github.com/x-motemen/blogsync/compare/v0.20.0...v0.20.1) - 2023-11-12
 - change test blog for CI by @Songmu in https://github.com/x-motemen/blogsync/pull/144
 - [nit] refactoring by @Songmu in https://github.com/x-motemen/blogsync/pull/146
diff --git a/action.yml b/action.yml
index 8eede4b..789f9ea 100644
--- a/action.yml
+++ b/action.yml
@@ -3,7 +3,7 @@ description: setup blogsync to publish to Hatena Blog
 inputs:
   version:
     description: "A version to install blogsync"
-    default: "v0.20.1"
+    default: "v0.20.2"
     required: false
 runs:
   using: 'composite'
diff --git a/version.go b/version.go
index afb43c7..e49133b 100644
--- a/version.go
+++ b/version.go
@@ -1,5 +1,5 @@
 package main
 
-const version = "0.20.1"
+const version = "0.20.2"
 
 var revision = "HEAD"