diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1678f02c..431d6414 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
-Unreleased
+4.0.0 / 2023-03-14
 ------------------
 * oEmbed type=richの制限的なサポート
+* プラグインの引数がWHATWG URLになりました
 
 3.0.4 / 2023-02-12
 ------------------
diff --git a/README.md b/README.md
index aaf9012c..661f6382 100644
--- a/README.md
+++ b/README.md
@@ -51,11 +51,13 @@ npm run serve
 
 ``` typescript
 interface IPlugin {
-	test: (url: URL.Url) => boolean;
-	summarize: (url: URL.Url) => Promise<Summary>;
+	test: (url: URL) => boolean;
+	summarize: (url: URL) => Promise<Summary>;
 }
 ```
 
+urls are WHATWG URL since v4.
+
 ### Returns
 
 A Promise of an Object that contains properties below:
@@ -127,12 +129,5 @@ License
 ----------------------------------------------------------------
 [MIT](LICENSE)
 
-[npm-link]:       https://www.npmjs.com/package/summaly
-[npm-badge]:      https://img.shields.io/npm/v/summaly.svg?style=flat-square
-[mit]:            http://opensource.org/licenses/MIT
-[mit-badge]:      https://img.shields.io/badge/license-MIT-444444.svg?style=flat-square
-[travis-link]:    https://travis-ci.org/syuilo/summaly
-[travis-badge]:   http://img.shields.io/travis/syuilo/summaly.svg?style=flat-square
-[himasaku]:       https://himasaku.net
 [himawari-badge]: https://img.shields.io/badge/%E5%8F%A4%E8%B0%B7-%E5%90%91%E6%97%A5%E8%91%B5-1684c5.svg?style=flat-square
 [sakurako-badge]: https://img.shields.io/badge/%E5%A4%A7%E5%AE%A4-%E6%AB%BB%E5%AD%90-efb02a.svg?style=flat-square
diff --git a/package.json b/package.json
index 2e41dda7..de3bd60f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "summaly",
-  "version": "3.0.4",
+  "version": "4.0.0",
   "description": "Get web page's summary",
   "author": "syuilo <syuilotan@yahoo.co.jp>",
   "license": "MIT",
@@ -25,7 +25,6 @@
     "@types/cheerio": "0.22.18",
     "@types/debug": "4.1.7",
     "@types/escape-regexp": "^0.0.1",
-    "@types/html-entities": "1.3.4",
     "@types/node": "16.11.12",
     "debug": "^4.3.4",
     "fastify": "^4.13.0",
@@ -34,9 +33,9 @@
     "typescript": "4.5.3"
   },
   "dependencies": {
-    "cheerio": "^1.0.0-rc.12",
+    "cheerio": "1.0.0-rc.12",
     "escape-regexp": "0.0.1",
-    "got": "^12.5.3",
+    "got": "^12.6.0",
     "html-entities": "2.3.2",
     "iconv-lite": "0.6.3",
     "jschardet": "3.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 01afc1cd..95057fd3 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -7,14 +7,13 @@ specifiers:
   '@types/cheerio': 0.22.18
   '@types/debug': 4.1.7
   '@types/escape-regexp': ^0.0.1
-  '@types/html-entities': 1.3.4
   '@types/node': 16.11.12
-  cheerio: ^1.0.0-rc.12
+  cheerio: 1.0.0-rc.12
   debug: ^4.3.4
   escape-regexp: 0.0.1
   fastify: ^4.13.0
   fastify-cli: ^5.7.1
-  got: ^12.5.3
+  got: ^12.6.0
   html-entities: 2.3.2
   iconv-lite: 0.6.3
   jest: ^29.4.2
@@ -40,7 +39,6 @@ devDependencies:
   '@types/cheerio': 0.22.18
   '@types/debug': 4.1.7
   '@types/escape-regexp': 0.0.1
-  '@types/html-entities': 1.3.4
   '@types/node': 16.11.12
   debug: 4.3.4
   fastify: 4.14.1
@@ -895,13 +893,6 @@ packages:
       '@types/node': 16.11.12
     dev: true
 
-  /@types/html-entities/1.3.4:
-    resolution: {integrity: sha512-Ut62LV90H9tgXwyhmfR8U6yCw/6xeo26IlsbAJJfqPomaqDN2zoLb2Z+cbmy5AycJFhwNJDdH0zqjQp7Ox/eXg==}
-    deprecated: This is a stub types definition. html-entities provides its own type definitions, so you do not need this installed.
-    dependencies:
-      html-entities: 2.3.2
-    dev: true
-
   /@types/http-cache-semantics/4.0.1:
     resolution: {integrity: sha512-SZs7ekbP8CN0txVG2xVRH6EgKmEm31BOxA07vkFaETzZz1xh+cbt8BcI0slpymvwhx5dlFnQG2rTlPVQn+iRPQ==}
     dev: false
@@ -1838,6 +1829,7 @@ packages:
 
   /html-entities/2.3.2:
     resolution: {integrity: sha512-c3Ab/url5ksaT0WyleslpBEthOzWhrjQbg75y7XUsfSzi3Dgzt0l8w5e7DylRn15MTlMMD58dTfzddNS2kcAjQ==}
+    dev: false
 
   /html-escaper/2.0.2:
     resolution: {integrity: sha512-H2iMtd0I4Mt5eYiapRdIDjp+XzelXQ0tFE4JS7YFwFevXXMmOp9myNrUvCg0D6ws8iqkRPBfKHgbwig1SmlLfg==}