diff --git a/config/webpack.config.dev.js b/config/webpack.config.dev.js
index 46101ec..4515283 100644
--- a/config/webpack.config.dev.js
+++ b/config/webpack.config.dev.js
@@ -1,6 +1,5 @@
 'use strict';
 
-const autoprefixer = require('autoprefixer');
 const path = require('path');
 const webpack = require('webpack');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
@@ -150,7 +149,6 @@ module.exports = {
 							cacheDirectory: true,
 						},
 					},
-					// "postcss" loader applies autoprefixer to our CSS.
 					// "css" loader resolves paths in CSS and adds assets as dependencies.
 					// "style" loader turns CSS into JS modules that inject <style> tags.
 					// In production, we use a plugin to extract that CSS to a file, but
@@ -173,15 +171,6 @@ module.exports = {
 									ident: 'postcss',
 									plugins: () => [
 										require('postcss-flexbugs-fixes'),
-										autoprefixer({
-											browsers: [
-												'>1%',
-												'last 4 versions',
-												'Firefox ESR',
-												'not ie < 11',
-											],
-											flexbox: 'no-2009',
-										}),
 									],
 								},
 							},
diff --git a/config/webpack.config.prod.js b/config/webpack.config.prod.js
index fc7dc5c..f2b27e9 100644
--- a/config/webpack.config.prod.js
+++ b/config/webpack.config.prod.js
@@ -1,6 +1,5 @@
 'use strict';
 
-const autoprefixer = require('autoprefixer');
 const path = require('path');
 const webpack = require('webpack');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
@@ -148,7 +147,6 @@ module.exports = {
             },
           },
           // The notation here is somewhat confusing.
-          // "postcss" loader applies autoprefixer to our CSS.
           // "css" loader resolves paths in CSS and adds assets as dependencies.
           // "style" loader normally turns CSS into JS modules injecting <style>,
           // but unlike in development configuration, we do something different.
@@ -187,15 +185,6 @@ module.exports = {
                         ident: 'postcss',
                         plugins: () => [
                           require('postcss-flexbugs-fixes'),
-                          autoprefixer({
-                            browsers: [
-                              '>1%',
-                              'last 4 versions',
-                              'Firefox ESR',
-                              'not ie < 11',
-                            ],
-                            flexbox: 'no-2009',
-                          }),
                         ],
                       },
                     },
diff --git a/package.json b/package.json
index 9791a9a..efa3569 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,6 @@
     "ws": "^5.1.1"
   },
   "devDependencies": {
-    "autoprefixer": "^8.2.0",
     "babel-core": "6.26.0",
     "babel-eslint": "^8.2.2",
     "babel-jest": "^22.4.3",
diff --git a/yarn.lock b/yarn.lock
index cc2d280..5883617 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -454,17 +454,6 @@ autoprefixer@^6.3.1:
     postcss "^5.2.16"
     postcss-value-parser "^3.2.3"
 
-autoprefixer@^8.2.0:
-  version "8.3.0"
-  resolved "https://registry.npmjs.org/autoprefixer/-/autoprefixer-8.3.0.tgz#22ac5151c3c8946bb8f75f337d5c5042c0ec6404"
-  dependencies:
-    browserslist "^3.2.4"
-    caniuse-lite "^1.0.30000830"
-    normalize-range "^0.1.2"
-    num2fraction "^1.2.2"
-    postcss "^6.0.21"
-    postcss-value-parser "^3.2.3"
-
 aws-sign2@~0.7.0:
   version "0.7.0"
   resolved "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
@@ -1307,13 +1296,6 @@ browserslist@^2.1.2:
     caniuse-lite "^1.0.30000792"
     electron-to-chromium "^1.3.30"
 
-browserslist@^3.2.4:
-  version "3.2.5"
-  resolved "https://registry.npmjs.org/browserslist/-/browserslist-3.2.5.tgz#aa46a5ea33b5330178f3c91cfd85e148fcb57080"
-  dependencies:
-    caniuse-lite "^1.0.30000830"
-    electron-to-chromium "^1.3.42"
-
 bser@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/bser/-/bser-2.0.0.tgz#9ac78d3ed5d915804fd87acb158bc797147a1719"
@@ -1470,7 +1452,7 @@ caniuse-db@^1.0.30000529, caniuse-db@^1.0.30000634, caniuse-db@^1.0.30000639:
   version "1.0.30000830"
   resolved "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30000830.tgz#6e45255b345649fd15ff59072da1e12bb3de2f13"
 
-caniuse-lite@^1.0.30000792, caniuse-lite@^1.0.30000830:
+caniuse-lite@^1.0.30000792:
   version "1.0.30000830"
   resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30000830.tgz#cb96b8a2dd3cbfe04acea2af3c4e894249095328"
 
@@ -2478,7 +2460,7 @@ electron-publish@20.9.0:
     lazy-val "^1.0.3"
     mime "^2.3.1"
 
-electron-to-chromium@^1.2.7, electron-to-chromium@^1.3.30, electron-to-chromium@^1.3.42:
+electron-to-chromium@^1.2.7, electron-to-chromium@^1.3.30:
   version "1.3.42"
   resolved "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.42.tgz#95c33bf01d0cc405556aec899fe61fd4d76ea0f9"
 
@@ -6141,7 +6123,7 @@ postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.13, postcss@^5.0
     source-map "^0.5.6"
     supports-color "^3.2.3"
 
-postcss@^6.0.0, postcss@^6.0.1, postcss@^6.0.21:
+postcss@^6.0.0, postcss@^6.0.1:
   version "6.0.21"
   resolved "https://registry.npmjs.org/postcss/-/postcss-6.0.21.tgz#8265662694eddf9e9a5960db6da33c39e4cd069d"
   dependencies: