diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7761f9..c6e6e03 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,14 +4,12 @@ All notable changes to this project will be documented in this file. See [standa
 
 ## [0.2.0](https://github.com/p-chan/object-to-css-variables/compare/v0.1.0...v0.2.0) (2021-10-03)
 
-
 ### Features
 
-* change the key to kebab-case when the key contains camelCase ([93fcbe3](https://github.com/p-chan/object-to-css-variables/commit/93fcbe3690eb942cef5858b4e38997f99723cce6))
+- change the key to kebab-case when the key contains camelCase ([93fcbe3](https://github.com/p-chan/object-to-css-variables/commit/93fcbe3690eb942cef5858b4e38997f99723cce6))
 
 ## 0.1.0 (2021-10-03)
 
-
 ### Features
 
-* initial commit ([529a27d](https://github.com/p-chan/object-to-css-variables/commit/529a27d33894cbb13ce3fd3f36e9d16db383c266))
+- initial commit ([529a27d](https://github.com/p-chan/object-to-css-variables/commit/529a27d33894cbb13ce3fd3f36e9d16db383c266))
diff --git a/package.json b/package.json
index ced65a1..fde7d86 100644
--- a/package.json
+++ b/package.json
@@ -52,5 +52,10 @@
     "tsup": "6.2.3",
     "typescript": "4.8.4",
     "vitest": "0.24.1"
+  },
+  "standard-version": {
+    "scripts": {
+      "postchangelog": "prettier --write ./CHANGELOG.md"
+    }
   }
 }