diff --git a/packages/@vue/cli-service/lib/commands/ui.js b/packages/@vue/cli-service/lib/commands/ui.js
index 760e9f2bb..fad2dc126 100644
--- a/packages/@vue/cli-service/lib/commands/ui.js
+++ b/packages/@vue/cli-service/lib/commands/ui.js
@@ -1,3 +1,5 @@
+const { openBrowser } = require('@vue/cli-shared-utils')
+
 module.exports = api => {
   api.registerCommand('ui', args => {
     api.setMode('production')
@@ -18,6 +20,8 @@ module.exports = api => {
       }
     }
 
-    server(opts)
+    server(opts, () => {
+      openBrowser(`http://localhost:${process.env.VUE_APP_GRAPHQL_PORT}`)
+    })
   })
 }
diff --git a/packages/@vue/cli-ui/package.json b/packages/@vue/cli-ui/package.json
index 96f0a9a0e..751936abb 100644
--- a/packages/@vue/cli-ui/package.json
+++ b/packages/@vue/cli-ui/package.json
@@ -56,7 +56,7 @@
     "lint-staged": "^6.0.0",
     "stylus": "^0.54.5",
     "stylus-loader": "^3.0.1",
-    "vue-cli-plugin-apollo": "^0.7.7",
+    "vue-cli-plugin-apollo": "^0.7.8",
     "vue-template-compiler": "^2.5.16"
   },
   "browserslist": [
diff --git a/packages/@vue/cli/lib/ui.js b/packages/@vue/cli/lib/ui.js
index 312b498de..4adee392b 100644
--- a/packages/@vue/cli/lib/ui.js
+++ b/packages/@vue/cli/lib/ui.js
@@ -1,4 +1,4 @@
-const { log, error, openBrowser } = require('@vue/cli-shared-utils')
+const { log, error } = require('@vue/cli-shared-utils')
 const portfinder = require('portfinder')
 const execa = require('execa')
 
@@ -23,10 +23,6 @@ async function ui (options = {}, context = process.cwd()) {
     cwd: context,
     stdio: ['inherit', 'inherit', 'inherit']
   })
-
-  setTimeout(() => {
-    openBrowser(`http://localhost:${port}`)
-  }, 1000)
 }
 
 module.exports = (...args) => {
diff --git a/yarn.lock b/yarn.lock
index c8cf41a0e..ddeb3874f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10964,9 +10964,9 @@ vue-class-component@^6.0.0:
   version "6.2.0"
   resolved "https://registry.yarnpkg.com/vue-class-component/-/vue-class-component-6.2.0.tgz#7adb1daa9a868c75f30f97f33f4f1b94aee62089"
 
-vue-cli-plugin-apollo@^0.7.7:
-  version "0.7.7"
-  resolved "https://registry.yarnpkg.com/vue-cli-plugin-apollo/-/vue-cli-plugin-apollo-0.7.7.tgz#47e7e30e02f8eca20c1cc5dd0395fb2c3848afc8"
+vue-cli-plugin-apollo@^0.7.8:
+  version "0.7.8"
+  resolved "https://registry.yarnpkg.com/vue-cli-plugin-apollo/-/vue-cli-plugin-apollo-0.7.8.tgz#087898aaba4015e2791149a8d01e230ddc919beb"
   dependencies:
     apollo-engine "^1.1.0"
     apollo-server-express "^1.3.2"