diff --git a/ruoyi-ui/babel.config.js b/ruoyi-ui/babel.config.js
index c8e69f5..b732c91 100644
--- a/ruoyi-ui/babel.config.js
+++ b/ruoyi-ui/babel.config.js
@@ -1,5 +1,13 @@
 module.exports = {
   presets: [
-    '@vue/app'
-  ]
+    // https://github.com/vuejs/vue-cli/tree/master/packages/@vue/babel-preset-app
+    '@vue/cli-plugin-babel/preset'
+  ],
+  'env': {
+    'development': {
+      // babel-plugin-dynamic-import-node plugin only does one thing by converting all import() to require().
+      // This plugin can significantly increase the speed of hot updates, when you have a large number of pages.
+      'plugins': ['dynamic-import-node']
+    }
+  }
 }
diff --git a/ruoyi-ui/package.json b/ruoyi-ui/package.json
index 51a29ba..183a805 100644
--- a/ruoyi-ui/package.json
+++ b/ruoyi-ui/package.json
@@ -5,7 +5,7 @@
   "author": "若依",
   "license": "MIT",
   "scripts": {
-    "dev": "vue-cli-service serve --open",
+    "dev": "vue-cli-service serve",
     "build:prod": "vue-cli-service build",
     "build:stage": "vue-cli-service build --mode staging",
     "preview": "node build/index.js --preview",
@@ -43,10 +43,11 @@
     "@riophae/vue-treeselect": "0.4.0",
     "axios": "0.18.1",
     "clipboard": "2.0.4",
+    "core-js": "3.6.5",
     "echarts": "4.2.1",
     "element-ui": "2.13.2",
     "file-saver": "2.0.1",
-    "js-beautify": "^1.10.2",
+    "js-beautify": "1.10.2",
     "fuse.js": "3.4.4",
     "js-cookie": "2.2.0",
     "jsencrypt": "3.0.0-rc.1",
@@ -65,32 +66,31 @@
     "vuex": "3.1.0"
   },
   "devDependencies": {
-    "@vue/cli-plugin-babel": "3.5.3",
-    "@vue/cli-plugin-eslint": "^3.9.1",
-    "@vue/cli-plugin-unit-jest": "3.5.3",
-    "@vue/cli-service": "3.5.3",
+    "@vue/cli-plugin-babel": "4.4.4",
+    "@vue/cli-plugin-eslint": "4.4.4",
+    "@vue/cli-plugin-unit-jest": "4.4.4",
+    "@vue/cli-service": "4.4.4",
     "@vue/test-utils": "1.0.0-beta.29",
-    "autoprefixer": "^9.5.1",
-    "babel-core": "7.0.0-bridge.0",
-    "babel-eslint": "10.0.1",
+    "autoprefixer": "9.5.1",
+    "babel-eslint": "10.1.0",
     "babel-jest": "23.6.0",
+    "babel-plugin-dynamic-import-node": "2.3.3",
     "chalk": "2.4.2",
     "chokidar": "2.1.5",
     "connect": "3.6.6",
-    "eslint": "5.15.3",
-    "eslint-plugin-vue": "5.2.2",
+    "eslint": "6.7.2",
+    "eslint-plugin-vue": "6.2.2",
     "html-webpack-plugin": "3.2.0",
-    "http-proxy-middleware": "^0.19.1",
     "husky": "1.3.1",
     "lint-staged": "8.1.5",
     "mockjs": "1.0.1-beta3",
     "plop": "2.3.0",
-    "runjs": "^4.3.2",
-	"sass": "^1.26.10",
-    "sass-loader": "^7.1.0",
+    "runjs": "4.3.2",
+    "sass": "1.26.10",
+    "sass-loader": "8.0.2",
     "script-ext-html-webpack-plugin": "2.1.3",
     "script-loader": "0.7.2",
-    "serve-static": "^1.13.2",
+    "serve-static": "1.13.2",
     "svg-sprite-loader": "4.1.3",
     "svgo": "1.2.0",
     "vue-template-compiler": "2.6.10"
diff --git a/ruoyi-ui/vue.config.js b/ruoyi-ui/vue.config.js
index 963a823..a83bcd0 100644
--- a/ruoyi-ui/vue.config.js
+++ b/ruoyi-ui/vue.config.js
@@ -30,6 +30,7 @@ module.exports = {
   devServer: {
     host: '0.0.0.0',
     port: port,
+    open: true,
     proxy: {
       // detail: https://cli.vuejs.org/config/#devserver-proxy
       [process.env.VUE_APP_BASE_API]: {
@@ -71,17 +72,6 @@ module.exports = {
       })
       .end()
 
-    // set preserveWhitespace
-    config.module
-      .rule('vue')
-      .use('vue-loader')
-      .loader('vue-loader')
-      .tap(options => {
-        options.compilerOptions.preserveWhitespace = true
-        return options
-      })
-      .end()
-
     config
       .when(process.env.NODE_ENV !== 'development',
         config => {