diff --git a/lib/app.js b/lib/app.js
index a0b97e7..ec205c0 100644
--- a/lib/app.js
+++ b/lib/app.js
@@ -4,8 +4,8 @@ const path = require('path');
 const EventEmitter = require('events');
 const co = require('co');
 const is = require('is-type-of');
-const ready = require('get-ready');
-const detectPort = require('detect-port');
+const { Ready } = require('get-ready');
+const { detectPort } = require('detect-port');
 const ConsoleLogger = require('egg-logger').EggConsoleLogger;
 const { sleep, rimraf } = require('./utils');
 const formatOptions = require('./format_options');
@@ -41,7 +41,7 @@ class MockApplication extends EventEmitter {
     this[APP_INIT] = false;
     this[INIT_ON_LISTENER] = new Set();
     this[INIT_ONCE_LISTENER] = new Set();
-    ready.mixin(this);
+    Ready.mixin(this);
     // listen once, otherwise will throw exception when emit error without listenr
     this.once('error', () => {});
 
diff --git a/lib/cluster.js b/lib/cluster.js
index 15221c0..6de9764 100644
--- a/lib/cluster.js
+++ b/lib/cluster.js
@@ -3,7 +3,7 @@ const path = require('path');
 const os = require('os');
 const childProcess = require('child_process');
 const Coffee = require('coffee').Coffee;
-const ready = require('get-ready');
+const { Ready } = require('get-ready');
 const co = require('co');
 const awaitEvent = require('await-event');
 const supertestRequest = require('./supertest');
@@ -71,7 +71,7 @@ class ClusterApplication extends Coffee {
       opt,
     });
 
-    ready.mixin(this);
+    Ready.mixin(this);
 
     this.port = options.port;
     this.baseDir = options.baseDir;
diff --git a/lib/parallel/agent.js b/lib/parallel/agent.js
index 4b9a069..6359698 100644
--- a/lib/parallel/agent.js
+++ b/lib/parallel/agent.js
@@ -1,7 +1,7 @@
 const debug = require('util').debuglog('egg-mock:lib:parallel:agent');
 const path = require('path');
 const Base = require('sdk-base');
-const detectPort = require('detect-port');
+const { detectPort } = require('detect-port');
 const context = require('../context');
 const formatOptions = require('../format_options');
 const { sleep, rimraf } = require('../utils');
diff --git a/package.json b/package.json
index bbb9152..5929319 100644
--- a/package.json
+++ b/package.json
@@ -30,13 +30,13 @@
     "await-event": "^2.1.0",
     "co": "^4.6.0",
     "coffee": "^5.2.1",
-    "detect-port": "^1.3.0",
+    "detect-port": "^2.0.1",
     "egg-logger": "^3.5.0",
     "egg-utils": "^2.4.1",
     "extend2": "^1.0.0",
-    "get-ready": "^2.0.1",
+    "get-ready": "^3.1.0",
     "globby": "^11.1.0",
-    "is-type-of": "^1.4.0",
+    "is-type-of": "^2.2.0",
     "merge-descriptors": "^1.0.1",
     "methods": "^1.1.2",
     "mm": "^3.0.2",