diff --git a/lib/egg.js b/lib/egg.js
index d9edea7146..96c978b534 100644
--- a/lib/egg.js
+++ b/lib/egg.js
@@ -105,6 +105,7 @@ class EggApplication extends EggCore {
      */
     this.cluster = (clientClass, options) => {
       options = Object.assign({}, this.config.clusterClient, options, {
+        singleMode: this.options.mode === 'single',
         // cluster need a port that can't conflict on the environment
         port: this.options.clusterPort,
         // agent worker is leader, app workers are follower
diff --git a/lib/start.js b/lib/start.js
index df80cfb884..cabeac8dc7 100644
--- a/lib/start.js
+++ b/lib/start.js
@@ -1,6 +1,5 @@
 'use strict';
 
-const detectPort = require('detect-port');
 const path = require('path');
 
 module.exports = async (options = {}) => {
@@ -8,8 +7,6 @@ module.exports = async (options = {}) => {
 
   options.baseDir = options.baseDir || process.cwd();
   options.mode = 'single';
-  // FIXME: cluster-client support single process mode
-  options.clusterPort = await detectPort();
 
   // get agent from options.framework and package.egg.framework
   if (!options.framework) {
diff --git a/package.json b/package.json
index f875acb503..710f58b8ce 100644
--- a/package.json
+++ b/package.json
@@ -15,19 +15,18 @@
   "dependencies": {
     "@types/accepts": "^1.3.5",
     "@types/koa": "^2.0.48",
-    "@types/koa-router": "^7.0.39",
+    "@types/koa-router": "^7.0.40",
     "@types/urllib": "^2.28.1",
     "accepts": "^1.3.5",
-    "agentkeepalive": "^4.0.0",
+    "agentkeepalive": "^4.0.2",
     "cache-content-type": "^1.0.1",
     "circular-json-for-egg": "^1.0.0",
-    "cluster-client": "^2.1.2",
+    "cluster-client": "^3.0.0",
     "debug": "^4.1.1",
     "delegates": "^1.0.0",
-    "detect-port": "^1.3.0",
     "egg-cluster": "^1.22.2",
     "egg-cookies": "^2.2.6",
-    "egg-core": "^4.14.0",
+    "egg-core": "^4.14.1",
     "egg-development": "^2.4.2",
     "egg-i18n": "^2.0.0",
     "egg-jsonp": "^2.0.0",
@@ -36,9 +35,9 @@
     "egg-multipart": "^2.4.0",
     "egg-onerror": "^2.1.0",
     "egg-schedule": "^3.6.0",
-    "egg-security": "^2.4.2",
+    "egg-security": "^2.4.3",
     "egg-session": "^3.1.0",
-    "egg-static": "^2.1.1",
+    "egg-static": "^2.2.0",
     "egg-view": "^2.1.2",
     "egg-watcher": "^3.1.0",
     "extend2": "^1.0.0",
@@ -70,9 +69,9 @@
     "egg-plugin-puml": "^2.4.0",
     "egg-tracer": "^1.1.0",
     "egg-view-nunjucks": "^2.2.0",
-    "eslint": "^5.13.0",
+    "eslint": "^5.14.1",
     "eslint-config-egg": "^7.1.0",
-    "findlinks": "^1.1.0",
+    "findlinks": "^2.0.0",
     "formstream": "^1.1.0",
     "glob": "^7.1.3",
     "koa-static": "^3.0.0",
@@ -83,7 +82,7 @@
     "spy": "^1.0.0",
     "supertest": "^3.4.2",
     "ts-node": "^3.0.6",
-    "typescript": "^3.3.3",
+    "typescript": "^3.3.3333",
     "webstorm-disable-index": "^1.1.2"
   },
   "main": "index.js",
diff --git a/test/lib/cluster/cluster-client.test.js b/test/lib/cluster/cluster-client.test.js
index deb0e6c35e..b57095cbc1 100644
--- a/test/lib/cluster/cluster-client.test.js
+++ b/test/lib/cluster/cluster-client.test.js
@@ -65,8 +65,13 @@ describe('test/lib/cluster/cluster-client.test.js', () => {
     });
     after(async () => {
       await app.close();
+
+      assert(app.registryClient.isClusterClientLeader);
+      assert(app.agent.registryClient.isClusterClientLeader);
+      assert(app.registryClient[innerClient] === app.agent.registryClient[innerClient]);
+
       const agentInnerClient = app.agent.registryClient[innerClient];
-      assert(agentInnerClient._realClient.closed === true);
+      assert(agentInnerClient.closed === true);
       mm.restore();
     });