diff --git a/npm/prettier-config/CHANGELOG.md b/npm/prettier-config/CHANGELOG.md
index dc3d3db..8041961 100644
--- a/npm/prettier-config/CHANGELOG.md
+++ b/npm/prettier-config/CHANGELOG.md
@@ -10,6 +10,15 @@ # `@revi/prettier-config` changelog
 - minor: When the plugin is added.
 - patch: When the rule is modified (without plugin addition/removal).
 
+## v0.2.1
+
+Date: 2024-10-08 (KST)
+
+### Update
+
+- Add `dprint.json` as jsonc.
+- Update `README.md`.
+
 ## v0.2.0
 
 Date: 2024-10-06 (KST)
diff --git a/npm/prettier-config/README.md b/npm/prettier-config/README.md
index b257601..4069e05 100644
--- a/npm/prettier-config/README.md
+++ b/npm/prettier-config/README.md
@@ -15,6 +15,8 @@ ## Config
   singleQuote: true,
   trailingComma: 'all',
   plugins: [
+    // https://github.com/matzkoh/prettier-plugin-packagejson
+    'prettier-plugin-packagejson',
     // https://github.com/prettier/plugin-php
     '@prettier/plugin-php',
     // https://github.com/un-ts/prettier/tree/master/packages/sh
@@ -35,6 +37,7 @@ ## Config
         '**/*.hujson',
         '.devcontainer.json',
         '.devcontainer/**/devcontainer.json',
+        '**/dprint.json',
         '.vscode/**/*.json',
         '**/jsconfig.json',
         '**/jsconfig.*.json',
diff --git a/npm/prettier-config/package.json b/npm/prettier-config/package.json
index 5839090..bb9f764 100644
--- a/npm/prettier-config/package.json
+++ b/npm/prettier-config/package.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "@revi/prettier-config",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "@revi's prettier configs",
   "keywords": [
     "prettier"
diff --git a/npm/prettier-config/prettier.config.js b/npm/prettier-config/prettier.config.js
index 97db3af..9fa8141 100644
--- a/npm/prettier-config/prettier.config.js
+++ b/npm/prettier-config/prettier.config.js
@@ -37,6 +37,7 @@ const config = {
         '**/*.hujson',
         '.devcontainer.json',
         '.devcontainer/**/devcontainer.json',
+        '**/dprint.json',
         '.vscode/**/*.json',
         '**/jsconfig.json',
         '**/jsconfig.*.json',