diff --git a/lib/dev.js b/lib/dev.js
index cfb7dc4bf7..150971d58d 100644
--- a/lib/dev.js
+++ b/lib/dev.js
@@ -7,6 +7,7 @@ module.exports = async function dev (sourceDir, cliOptions = {}) {
   const serve = require('webpack-serve')
   const convert = require('koa-connect')
   const mount = require('koa-mount')
+  const range = require('koa-range')
   const serveStatic = require('koa-static')
   const history = require('connect-history-api-fallback')
 
@@ -108,6 +109,10 @@ module.exports = async function dev (sourceDir, cliOptions = {}) {
     port,
     add: app => {
       const userPublic = path.resolve(sourceDir, '.vuepress/public')
+
+      // enable range request
+      app.use(range)
+
       // respect base when serving static files...
       if (fs.existsSync(userPublic)) {
         app.use(mount(options.publicPath, serveStatic(userPublic)))
diff --git a/package.json b/package.json
index 13b6fe28da..37b14853ad 100644
--- a/package.json
+++ b/package.json
@@ -60,6 +60,7 @@
     "js-yaml": "^3.11.0",
     "koa-connect": "^2.0.1",
     "koa-mount": "^3.0.0",
+    "koa-range": "^0.3.0",
     "koa-static": "^4.0.2",
     "loader-utils": "^1.1.0",
     "lodash.throttle": "^4.1.1",
diff --git a/yarn.lock b/yarn.lock
index 1b3c98886d..6cf9d6296b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5060,6 +5060,12 @@ koa-mount@^3.0.0:
     debug "^2.6.1"
     koa-compose "^3.2.1"
 
+koa-range@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/koa-range/-/koa-range-0.3.0.tgz#3588e3496473a839a1bd264d2a42b1d85bd7feac"
+  dependencies:
+    stream-slice "^0.1.2"
+
 koa-send@^4.1.3:
   version "4.1.3"
   resolved "https://registry.yarnpkg.com/koa-send/-/koa-send-4.1.3.tgz#0822207bbf5253a414c8f1765ebc29fa41353cb6"
@@ -7616,6 +7622,10 @@ stream-shift@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/stream-shift/-/stream-shift-1.0.0.tgz#d5c752825e5367e786f78e18e445ea223a155952"
 
+stream-slice@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/stream-slice/-/stream-slice-0.1.2.tgz#2dc4f4e1b936fb13f3eb39a2def1932798d07a4b"
+
 strict-uri-encode@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
@@ -8292,7 +8302,7 @@ vue-jest@^2.6.0:
     tsconfig "^7.0.0"
     vue-template-es2015-compiler "^1.6.0"
 
-vue-loader@^15.2.1:
+vue-loader@^15.2.4:
   version "15.2.4"
   resolved "https://registry.yarnpkg.com/vue-loader/-/vue-loader-15.2.4.tgz#a7b923123d3cf87230a8ff54a1c16d31a6c5dbb4"
   dependencies: