diff --git a/package.json b/package.json
index 56776504..90065ad9 100644
--- a/package.json
+++ b/package.json
@@ -53,6 +53,7 @@
     "debug": "^4.1.1",
     "diacritics": "^1.3.0",
     "escape-html": "^1.0.3",
+    "fs-extra": "^9.0.0",
     "globby": "^11.0.0",
     "gray-matter": "^4.0.2",
     "lru-cache": "^5.1.1",
@@ -68,6 +69,7 @@
     "vue": "^3.0.0-beta.9"
   },
   "devDependencies": {
+    "@types/fs-extra": "^8.1.0",
     "@types/lru-cache": "^5.1.0",
     "@types/markdown-it": "^10.0.1",
     "@types/node": "^13.13.4",
diff --git a/src/build/build.ts b/src/build/build.ts
index 290a46ba..5ff1a2b9 100644
--- a/src/build/build.ts
+++ b/src/build/build.ts
@@ -1,4 +1,4 @@
-import { promises as fs } from 'fs'
+import fs from 'fs-extra'
 import { bundle } from './bundle'
 import { BuildOptions as ViteBuildOptions } from 'vite'
 import { resolveConfig } from '../config'
@@ -6,7 +6,10 @@ import { renderPage } from './render'
 
 export type BuildOptions = Pick<
   ViteBuildOptions,
-  'root' | 'rollupInputOptions' | 'rollupOutputOptions'
+  | 'root'
+  | 'rollupInputOptions'
+  | 'rollupOutputOptions'
+  | 'rollupPluginVueOptions'
 >
 
 export const ASSETS_DIR = '_assets/'
@@ -20,7 +23,7 @@ export async function build(buildOptions: BuildOptions = {}) {
       await renderPage(siteConfig, page, clientResult)
     }
   } finally {
-    await fs.rmdir(siteConfig.tempDir, { recursive: true })
+    await fs.remove(siteConfig.tempDir)
   }
   console.log('done.')
 }
diff --git a/src/build/bundle.ts b/src/build/bundle.ts
index b202bf5a..ebef37b4 100644
--- a/src/build/bundle.ts
+++ b/src/build/bundle.ts
@@ -1,6 +1,6 @@
 import path from 'path'
 import slash from 'slash'
-import { promises as fs } from 'fs'
+import fs from 'fs-extra'
 import { APP_PATH, createResolver } from '../utils/pathResolver'
 import { BuildOptions, ASSETS_DIR } from './build'
 import { SiteConfig } from '../config'
diff --git a/src/build/render.ts b/src/build/render.ts
index 5e011f76..3f228431 100644
--- a/src/build/render.ts
+++ b/src/build/render.ts
@@ -1,5 +1,5 @@
 import path from 'path'
-import { promises as fs } from 'fs'
+import fs from 'fs-extra'
 import { SiteConfig, HeadConfig } from '../config'
 import { BuildResult } from 'vite'
 import { renderToString } from '@vue/server-renderer'
@@ -64,7 +64,7 @@ export async function renderPage(
   </body>
 </html>`.trim()
   const htmlFileName = path.join(config.outDir, page.replace(/\.md$/, '.html'))
-  await fs.mkdir(path.dirname(htmlFileName), { recursive: true })
+  await fs.ensureDir(path.dirname(htmlFileName))
   await fs.writeFile(htmlFileName, html)
 }
 
diff --git a/src/config.ts b/src/config.ts
index 4f3342d9..ca362d97 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -1,10 +1,10 @@
 import path from 'path'
+import fs from 'fs-extra'
 import chalk from 'chalk'
 import globby from 'globby'
 import { createResolver, APP_PATH } from './utils/pathResolver'
 import { Resolver } from 'vite'
 import { Header } from './markdown/plugins/header'
-import { exists } from './utils/fs'
 
 const debug = require('debug')('vitepress:config')
 
@@ -57,7 +57,7 @@ export async function resolveConfig(
 
   // resolve theme path
   const userThemeDir = resolve(root, 'theme')
-  const themeDir = (await exists(userThemeDir))
+  const themeDir = (await fs.pathExists(userThemeDir))
     ? userThemeDir
     : path.join(__dirname, '../lib/theme-default')
 
@@ -78,7 +78,7 @@ export async function resolveConfig(
 export async function resolveSiteData(root: string): Promise<SiteData> {
   // load user config
   const configPath = resolve(root, 'config.js')
-  const hasUserConfig = await exists(configPath)
+  const hasUserConfig = await fs.pathExists(configPath)
   // always delete cache first before loading config
   delete require.cache[configPath]
   const userConfig: UserConfig = hasUserConfig ? require(configPath) : {}
diff --git a/src/utils/fs.ts b/src/utils/fs.ts
deleted file mode 100644
index 59e6aecc..00000000
--- a/src/utils/fs.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-import path from 'path'
-import { promises as fs } from 'fs'
-
-export async function exists(path: string) {
-  try {
-    await fs.stat(path)
-    return true
-  } catch (e) {
-    return false
-  }
-}
-
-export async function copyDir(from: string, to: string) {
-  if (exists(to)) {
-    await fs.rmdir(to, { recursive: true })
-  }
-  await fs.mkdir(to, { recursive: true })
-  const content = await fs.readdir(from)
-  for (const entry of content) {
-    const fromPath = path.join(from, entry)
-    const toPath = path.join(to, entry)
-    const stat = await fs.stat(fromPath)
-    if (stat.isFile()) {
-      await fs.copyFile(fromPath, toPath)
-    } else if (stat.isDirectory()) {
-      await copyDir(fromPath, toPath)
-    }
-  }
-}
diff --git a/yarn.lock b/yarn.lock
index 50f493e3..fb22f1c5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -179,6 +179,13 @@
     "@types/qs" "*"
     "@types/serve-static" "*"
 
+"@types/fs-extra@^8.1.0":
+  version "8.1.0"
+  resolved "https://registry.yarnpkg.com/@types/fs-extra/-/fs-extra-8.1.0.tgz#1114834b53c3914806cd03b3304b37b3bd221a4d"
+  integrity sha512-UoOfVEzAUpeSPmjm7h1uk5MH6KZma2z2O7a75onTGjnNvAvMVrPzPL/vBbT65iIGHWj6rokwfmYcmxmlSf2uwg==
+  dependencies:
+    "@types/node" "*"
+
 "@types/http-assert@*":
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/@types/http-assert/-/http-assert-1.5.1.tgz#d775e93630c2469c2f980fc27e3143240335db3b"