diff --git a/src/optimize/base_optimizer.js b/src/optimize/base_optimizer.js
index 27d2a17ec79eb..5b4d149372511 100644
--- a/src/optimize/base_optimizer.js
+++ b/src/optimize/base_optimizer.js
@@ -3,6 +3,10 @@ import { writeFile } from 'fs';
 import Boom from 'boom';
 import ExtractTextPlugin from 'extract-text-webpack-plugin';
 import webpack from 'webpack';
+import CommonsChunkPlugin from 'webpack/lib/optimize/CommonsChunkPlugin';
+import DefinePlugin from 'webpack/lib/DefinePlugin';
+import UglifyJsPlugin from 'webpack/lib/optimize/UglifyJsPlugin';
+import NoEmitOnErrorsPlugin from 'webpack/lib/NoEmitOnErrorsPlugin';
 import Stats from 'webpack/lib/Stats';
 import webpackMerge from 'webpack-merge';
 
@@ -94,8 +98,6 @@ export default class BaseOptimizer {
       });
     }
 
-    const nodeModulesPath = fromRoot('node_modules');
-
     /**
      * Adds a cache loader if we're running in dev mode. The reason we're not adding
      * the cache-loader when running in production mode is that it creates cache
@@ -139,20 +141,12 @@ export default class BaseOptimizer {
           allChunks: true
         }),
 
-        new webpack.optimize.CommonsChunkPlugin({
+        new CommonsChunkPlugin({
           name: 'commons',
-          filename: 'commons.bundle.js',
-          minChunks: 2,
-        }),
-
-        new webpack.optimize.CommonsChunkPlugin({
-          name: 'vendors',
-          filename: 'vendors.bundle.js',
-          // only combine node_modules from Kibana
-          minChunks: module => module.context && module.context.indexOf(nodeModulesPath) !== -1
+          filename: 'commons.bundle.js'
         }),
 
-        new webpack.NoEmitOnErrorsPlugin(),
+        new NoEmitOnErrorsPlugin(),
       ],
 
       module: {
@@ -239,12 +233,12 @@ export default class BaseOptimizer {
 
     return webpackMerge(commonConfig, {
       plugins: [
-        new webpack.DefinePlugin({
+        new DefinePlugin({
           'process.env': {
             'NODE_ENV': '"production"'
           }
         }),
-        new webpack.optimize.UglifyJsPlugin({
+        new UglifyJsPlugin({
           compress: {
             warnings: false
           },
diff --git a/src/ui/ui_render/views/ui_app.jade b/src/ui/ui_render/views/ui_app.jade
index 120f26ad9046a..1595059410bfa 100644
--- a/src/ui/ui_render/views/ui_app.jade
+++ b/src/ui/ui_render/views/ui_app.jade
@@ -120,11 +120,8 @@ block content
         return anchor.href;
       }
       var files = [
-        bundleFile('vendors.style.css'),
         bundleFile('commons.style.css'),
         bundleFile('#{app.getId()}.style.css'),
-
-        bundleFile('vendors.bundle.js'),
         bundleFile('commons.bundle.js'),
         bundleFile('#{app.getId()}.bundle.js')
       ];
diff --git a/tasks/config/karma.js b/tasks/config/karma.js
index b72df5f6ad709..b362b5471c6e5 100644
--- a/tasks/config/karma.js
+++ b/tasks/config/karma.js
@@ -37,11 +37,8 @@ module.exports = function (grunt) {
 
       // list of files / patterns to load in the browser
       files: [
-        'http://localhost:5610/bundles/vendors.bundle.js',
         'http://localhost:5610/bundles/commons.bundle.js',
         'http://localhost:5610/bundles/tests.bundle.js',
-
-        'http://localhost:5610/bundles/vendors.style.css',
         'http://localhost:5610/bundles/commons.style.css',
         'http://localhost:5610/bundles/tests.style.css'
       ],
@@ -129,11 +126,8 @@ module.exports = function (grunt) {
       singleRun: true,
       options: {
         files: [
-          'http://localhost:5610/bundles/vendors.bundle.js',
           'http://localhost:5610/bundles/commons.bundle.js',
           `http://localhost:5610/bundles/tests.bundle.js?shards=${TOTAL_CI_SHARDS}&shard_num=${n}`,
-
-          'http://localhost:5610/bundles/vendors.style.css',
           'http://localhost:5610/bundles/commons.style.css',
           'http://localhost:5610/bundles/tests.style.css'
         ]