diff --git a/CHANGELOG.md b/CHANGELOG.md
index ecfa3895..e494e0d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -55,6 +55,10 @@ Types of changes:
 
   - For compatibility with version 4 of `pixi.js`, use `@robotlegsjs/pixi` version 1.
 
+#### Security
+
+- Migrate to [terser-webpack-plugin](https://github.com/webpack-contrib/terser-webpack-plugin) to solve security vulnerability (see #125).
+
 ## Robotlegs-Pixi 1.0.0
 
 ### [v1.0.1](https://github.com/RobotlegsJS/RobotlegsJS-Pixi/releases/tag/1.0.1) - 2019-10-24
diff --git a/package.json b/package.json
index 109fea47..53e64ecd 100644
--- a/package.json
+++ b/package.json
@@ -74,6 +74,7 @@
     "bluebird": "^3.7.2",
     "browserify-versionify": "^1.0.6",
     "chai": "^4.2.0",
+    "clean-webpack-plugin": "^3.0.0",
     "es6-map": "^0.1.5",
     "es6-symbol": "^3.1.3",
     "glslify": "^7.0.0",
@@ -99,12 +100,12 @@
     "rimraf": "^3.0.2",
     "sinon": "^8.1.1",
     "sinon-chai": "^3.4.0",
+    "terser-webpack-plugin": "^2.3.5",
     "ts-loader": "^6.2.1",
     "ts-node": "^8.6.2",
     "tslint": "^6.0.0",
     "tslint-config-prettier": "^1.18.0",
     "typescript": "^3.7.5",
-    "uglifyjs-webpack-plugin": "^2.2.0",
     "webpack": "^4.41.6",
     "webpack-cli": "^3.3.11",
     "webpack-dev-server": "^3.10.3",
diff --git a/webpack.config.js b/webpack.config.js
index d2d9747e..50eaecdb 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -1,6 +1,6 @@
 const webpack = require("webpack");
 const path = require("path");
-const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
+const TerserPlugin = require("terser-webpack-plugin");
 
 module.exports = env => {
   if (!env) env = { production: false, karma: false };
@@ -51,10 +51,10 @@ module.exports = env => {
           concatenateModules: true,
           minimize: true,
           minimizer: [
-            new UglifyJsPlugin({
+            new TerserPlugin({
               cache: true,
               parallel: 4,
-              uglifyOptions: {
+              terserOptions: {
                 output: {
                   comments: false
                 }
diff --git a/webpack.example.config.js b/webpack.example.config.js
index acff5628..0f79a567 100644
--- a/webpack.example.config.js
+++ b/webpack.example.config.js
@@ -2,6 +2,7 @@ const webpack = require("webpack");
 const path = require("path");
 const HtmlWebpackPlugin = require("html-webpack-plugin");
 const SimpleProgressPlugin = require("webpack-simple-progress-plugin");
+const { CleanWebpackPlugin } = require("clean-webpack-plugin");
 
 module.exports = options => {
   return {
@@ -23,6 +24,8 @@ module.exports = options => {
     },
 
     plugins: [
+      new CleanWebpackPlugin(),
+
       new HtmlWebpackPlugin({
         template: path.resolve("static/index.html"),
         inject: false
diff --git a/yarn.lock b/yarn.lock
index a7e19eb3..ea04f67b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -445,6 +445,11 @@
   resolved "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz#8da5c6530915653f3a1f38fd5f101d8c3f8079c5"
   integrity sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==
 
+"@types/anymatch@*":
+  version "1.3.1"
+  resolved "https://registry.npmjs.org/@types/anymatch/-/anymatch-1.3.1.tgz#336badc1beecb9dacc38bea2cf32adf627a8421a"
+  integrity sha512-/+CRPXpBDpo2RK9C68N3b2cOvO0Cf5B9aPijHsoDQTHivnGSObdOF2BRQOYjojWTDy6nQvMjmqRXIxH55VjxxA==
+
 "@types/bluebird@^3.5.29":
   version "3.5.29"
   resolved "https://registry.npmjs.org/@types/bluebird/-/bluebird-3.5.29.tgz#7cd933c902c4fc83046517a1bef973886d00bdb6"
@@ -494,11 +499,49 @@
   resolved "https://registry.npmjs.org/@types/sinon/-/sinon-7.5.1.tgz#d27b81af0d1cfe1f9b24eebe7a24f74ae40f5b7c"
   integrity sha512-EZQUP3hSZQyTQRfiLqelC9NMWd1kqLcmQE0dMiklxBkgi84T+cHOhnKpgk4NnOWpGX863yE6+IaGnOXUNFqDnQ==
 
+"@types/source-list-map@*":
+  version "0.1.2"
+  resolved "https://registry.npmjs.org/@types/source-list-map/-/source-list-map-0.1.2.tgz#0078836063ffaf17412349bba364087e0ac02ec9"
+  integrity sha512-K5K+yml8LTo9bWJI/rECfIPrGgxdpeNbj+d53lwN4QjW1MCwlkhUms+gtdzigTeUyBr09+u8BwOIY3MXvHdcsA==
+
+"@types/tapable@*":
+  version "1.0.5"
+  resolved "https://registry.npmjs.org/@types/tapable/-/tapable-1.0.5.tgz#9adbc12950582aa65ead76bffdf39fe0c27a3c02"
+  integrity sha512-/gG2M/Imw7cQFp8PGvz/SwocNrmKFjFsm5Pb8HdbHkZ1K8pmuPzOX4VeVoiEecFCVf4CsN1r3/BRvx+6sNqwtQ==
+
+"@types/uglify-js@*":
+  version "3.0.4"
+  resolved "https://registry.npmjs.org/@types/uglify-js/-/uglify-js-3.0.4.tgz#96beae23df6f561862a830b4288a49e86baac082"
+  integrity sha512-SudIN9TRJ+v8g5pTG8RRCqfqTMNqgWCKKd3vtynhGzkIIjxaicNAMuY5TRadJ6tzDu3Dotf3ngaMILtmOdmWEQ==
+  dependencies:
+    source-map "^0.6.1"
+
 "@types/webpack-env@^1.15.1":
   version "1.15.1"
   resolved "https://registry.npmjs.org/@types/webpack-env/-/webpack-env-1.15.1.tgz#c8e84705e08eed430b5e15b39c65b0944e4d1422"
   integrity sha512-eWN5ElDTeBc5lRDh95SqA8x18D0ll2pWudU3uWiyfsRmIZcmUXpEsxPU+7+BsdCrO2vfLRC629u/MmjbmF+2tA==
 
+"@types/webpack-sources@*":
+  version "0.1.6"
+  resolved "https://registry.npmjs.org/@types/webpack-sources/-/webpack-sources-0.1.6.tgz#3d21dfc2ec0ad0c77758e79362426a9ba7d7cbcb"
+  integrity sha512-FtAWR7wR5ocJ9+nP137DV81tveD/ZgB1sadnJ/axUGM3BUVfRPx8oQNMtv3JNfTeHx3VP7cXiyfR/jmtEsVHsQ==
+  dependencies:
+    "@types/node" "*"
+    "@types/source-list-map" "*"
+    source-map "^0.6.1"
+
+"@types/webpack@^4.4.31":
+  version "4.41.6"
+  resolved "https://registry.npmjs.org/@types/webpack/-/webpack-4.41.6.tgz#c76afbdef59159d12e3e1332dc264b75574722a2"
+  integrity sha512-iWRpV5Ej+8uKrgxp6jXz3v7ZTjgtuMXY+rsxQjFNU0hYCnHkpA7vtiNffgxjuxX4feFHBbz0IF76OzX2OqDYPw==
+  dependencies:
+    "@types/anymatch" "*"
+    "@types/node" "*"
+    "@types/tapable" "*"
+    "@types/uglify-js" "*"
+    "@types/webpack-sources" "*"
+    source-map "^0.6.0"
+
 "@webassemblyjs/ast@1.8.5":
   version "1.8.5"
   resolved "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.8.5.tgz#51b1c5fe6576a34953bf4b253df9f0d490d9e359"
@@ -688,6 +731,14 @@ agent-base@5:
   resolved "https://registry.npmjs.org/agent-base/-/agent-base-5.1.1.tgz#e8fb3f242959db44d63be665db7a8e739537a32c"
   integrity sha512-TMeqbNl2fMW0nMjTEPOwe3J/PRFP4vqeoNuQMG0HlMrtm5QxKqdvAkZ1pRBQ/ulIyDD5Yq0nJ7YbdD8ey0TO3g==
 
+aggregate-error@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.npmjs.org/aggregate-error/-/aggregate-error-3.0.1.tgz#db2fe7246e536f40d9b5442a39e117d7dd6a24e0"
+  integrity sha512-quoaXsZ9/BLNae5yiNoUz+Nhkwz83GhWwtYFglcjEQB2NDHCIpApbqXxIFnm4Pq/Nvhrsq5sYJFyohrrxnTGAA==
+  dependencies:
+    clean-stack "^2.0.0"
+    indent-string "^4.0.0"
+
 ajv-errors@^1.0.0:
   version "1.0.1"
   resolved "https://registry.npmjs.org/ajv-errors/-/ajv-errors-1.0.1.tgz#f35986aceb91afadec4102fbd85014950cefa64d"
@@ -1317,6 +1368,30 @@ cacache@^12.0.2:
     unique-filename "^1.1.1"
     y18n "^4.0.0"
 
+cacache@^13.0.1:
+  version "13.0.1"
+  resolved "https://registry.npmjs.org/cacache/-/cacache-13.0.1.tgz#a8000c21697089082f85287a1aec6e382024a71c"
+  integrity sha512-5ZvAxd05HDDU+y9BVvcqYu2LLXmPnQ0hW62h32g4xBTgL/MppR4/04NHfj/ycM2y6lmTnbw6HVi+1eN0Psba6w==
+  dependencies:
+    chownr "^1.1.2"
+    figgy-pudding "^3.5.1"
+    fs-minipass "^2.0.0"
+    glob "^7.1.4"
+    graceful-fs "^4.2.2"
+    infer-owner "^1.0.4"
+    lru-cache "^5.1.1"
+    minipass "^3.0.0"
+    minipass-collect "^1.0.2"
+    minipass-flush "^1.0.5"
+    minipass-pipeline "^1.2.2"
+    mkdirp "^0.5.1"
+    move-concurrently "^1.0.1"
+    p-map "^3.0.0"
+    promise-inflight "^1.0.1"
+    rimraf "^2.7.1"
+    ssri "^7.0.0"
+    unique-filename "^1.1.1"
+
 cache-base@^1.0.1:
   version "1.0.1"
   resolved "https://registry.npmjs.org/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
@@ -1450,7 +1525,7 @@ chokidar@^3.0.0:
   optionalDependencies:
     fsevents "~2.1.2"
 
-chownr@^1.1.1:
+chownr@^1.1.1, chownr@^1.1.2:
   version "1.1.4"
   resolved "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz#6fc9d7b42d32a583596337666e7d08084da2cc6b"
   integrity sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==
@@ -1492,6 +1567,19 @@ clean-css@4.2.x:
   dependencies:
     source-map "~0.6.0"
 
+clean-stack@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.npmjs.org/clean-stack/-/clean-stack-2.2.0.tgz#ee8472dbb129e727b31e8a10a427dee9dfe4008b"
+  integrity sha512-4diC9HaTE+KRAMWhDhrGOECgWZxoevMc5TlkObMqNSsVU62PYzXZ/SMTjzyGAFF1YusgxGcSWTEXBhp0CPwQ1A==
+
+clean-webpack-plugin@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.npmjs.org/clean-webpack-plugin/-/clean-webpack-plugin-3.0.0.tgz#a99d8ec34c1c628a4541567aa7b457446460c62b"
+  integrity sha512-MciirUH5r+cYLGCOL5JX/ZLzOZbVr1ot3Fw+KcvbhUb6PM+yycqd9ZhIlcigQ5gl+XhppNmw3bEFuaaMNyLj3A==
+  dependencies:
+    "@types/webpack" "^4.4.31"
+    del "^4.1.1"
+
 cli-cursor@^1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
@@ -1578,7 +1666,7 @@ commander@2.17.x:
   resolved "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
   integrity sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==
 
-commander@^2.12.1, commander@^2.15.1, commander@^2.20.0, commander@~2.20.3:
+commander@^2.12.1, commander@^2.15.1, commander@^2.20.0:
   version "2.20.3"
   resolved "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
   integrity sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==
@@ -2732,6 +2820,15 @@ find-cache-dir@^2.1.0:
     make-dir "^2.0.0"
     pkg-dir "^3.0.0"
 
+find-cache-dir@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.npmjs.org/find-cache-dir/-/find-cache-dir-3.2.0.tgz#e7fe44c1abc1299f516146e563108fd1006c1874"
+  integrity sha512-1JKclkYYsf1q9WIJKLZa9S9muC+08RIjzAlLrK4QcYLJMS6mk9yombQ9qf+zJ7H9LS800k0s44L4sDq9VYzqyg==
+  dependencies:
+    commondir "^1.0.1"
+    make-dir "^3.0.0"
+    pkg-dir "^4.1.0"
+
 find-root@^0.1.1:
   version "0.1.2"
   resolved "https://registry.npmjs.org/find-root/-/find-root-0.1.2.tgz#98d2267cff1916ccaf2743b3a0eea81d79d7dcd1"
@@ -2744,6 +2841,14 @@ find-up@3.0.0, find-up@^3.0.0:
   dependencies:
     locate-path "^3.0.0"
 
+find-up@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.npmjs.org/find-up/-/find-up-4.1.0.tgz#97afe7d6cdc0bc5928584b7c8d7b16e8a9aa5d19"
+  integrity sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==
+  dependencies:
+    locate-path "^5.0.0"
+    path-exists "^4.0.0"
+
 findup-sync@3.0.0:
   version "3.0.0"
   resolved "https://registry.npmjs.org/findup-sync/-/findup-sync-3.0.0.tgz#17b108f9ee512dfb7a5c7f3c8b27ea9e1a9c08d1"
@@ -2832,6 +2937,13 @@ fs-minipass@^1.2.5:
   dependencies:
     minipass "^2.6.0"
 
+fs-minipass@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.npmjs.org/fs-minipass/-/fs-minipass-2.1.0.tgz#7f5036fdbf12c63c169190cbe4199c852271f9fb"
+  integrity sha512-V/JgOLFCS+R6Vcq0slCuaeWEdNC3ouDlJMNIsacH2VtALiu9mV4LPrHc5cDl8k5aw6J8jwgWWpiTo5RYhmIzvg==
+  dependencies:
+    minipass "^3.0.0"
+
 fs-write-stream-atomic@^1.0.8:
   version "1.0.10"
   resolved "https://registry.npmjs.org/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz#b47df53493ef911df75731e70a9ded0189db40c9"
@@ -3129,7 +3241,7 @@ glslify@^7.0.0:
     through2 "^2.0.1"
     xtend "^4.0.0"
 
-graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.3, graceful-fs@^4.1.6:
+graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.3, graceful-fs@^4.1.6, graceful-fs@^4.2.2:
   version "4.2.3"
   resolved "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.3.tgz#4a12ff1b60376ef09862c2093edd908328be8423"
   integrity sha512-a30VEBm4PEdx1dRB7MFK7BejejvCvBronbLjht+sHuGYj8PHs7M/5Z+rt5lw551vZ7yfTCj4Vuyy3mSJytDWRQ==
@@ -3435,12 +3547,17 @@ imurmurhash@^0.1.4:
   resolved "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
   integrity sha1-khi5srkoojixPcT7a21XbyMUU+o=
 
+indent-string@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.npmjs.org/indent-string/-/indent-string-4.0.0.tgz#624f8f4497d619b2d9768531d58f4122854d7251"
+  integrity sha512-EdDDZu4A2OyIK7Lr/2zG+w5jmbuk1DVBnEwREQvBzspBJkCEbRa8GxU1lghYcaGJCnRWibjDXlq779X1/y5xwg==
+
 indexof@0.0.1:
   version "0.0.1"
   resolved "https://registry.npmjs.org/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
   integrity sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=
 
-infer-owner@^1.0.3:
+infer-owner@^1.0.3, infer-owner@^1.0.4:
   version "1.0.4"
   resolved "https://registry.npmjs.org/infer-owner/-/infer-owner-1.0.4.tgz#c4cefcaa8e51051c2a40ba2ce8a3d27295af9467"
   integrity sha512-IClj+Xz94+d7irH5qRyfJonOdfTzuDaifE6ZPWfx0N0+/ATZCbuTPq2prFl526urkQd90WyUKIh1DfBQ2hMz9A==
@@ -3902,6 +4019,14 @@ istanbul-reports@^2.2.4:
   dependencies:
     html-escaper "^2.0.0"
 
+jest-worker@^25.1.0:
+  version "25.1.0"
+  resolved "https://registry.npmjs.org/jest-worker/-/jest-worker-25.1.0.tgz#75d038bad6fdf58eba0d2ec1835856c497e3907a"
+  integrity sha512-ZHhHtlxOWSxCoNOKHGbiLzXnl42ga9CxDr27H36Qn+15pQZd3R/F24jrmjDelw9j/iHUIWMWs08/u2QN50HHOg==
+  dependencies:
+    merge-stream "^2.0.0"
+    supports-color "^7.0.0"
+
 "js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -4152,6 +4277,13 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
+locate-path@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz#1afba396afd676a6d42504d0a67a3a7eb9f62aa0"
+  integrity sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==
+  dependencies:
+    p-locate "^4.1.0"
+
 lodash.get@^4.4.2:
   version "4.4.2"
   resolved "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz#2d177f652fa31e939b4438d5341499dfa3825e99"
@@ -4245,6 +4377,13 @@ make-dir@^2.0.0, make-dir@^2.1.0:
     pify "^4.0.1"
     semver "^5.6.0"
 
+make-dir@^3.0.0:
+  version "3.0.2"
+  resolved "https://registry.npmjs.org/make-dir/-/make-dir-3.0.2.tgz#04a1acbf22221e1d6ef43559f43e05a90dbb4392"
+  integrity sha512-rYKABKutXa6vXTXhoV18cBE7PaewPXHe/Bdq4v+ZLMhxbWApkFFplT0LcbMW+6BbjnQXzZ/sAvSE/JdguApG5w==
+  dependencies:
+    semver "^6.0.0"
+
 make-error@^1.1.1:
   version "1.3.5"
   resolved "https://registry.npmjs.org/make-error/-/make-error-1.3.5.tgz#efe4e81f6db28cadd605c70f29c831b58ef776c8"
@@ -4325,6 +4464,11 @@ merge-descriptors@1.0.1:
   resolved "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
   integrity sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=
 
+merge-stream@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.npmjs.org/merge-stream/-/merge-stream-2.0.0.tgz#52823629a14dd00c9770fb6ad47dc6310f2c1f60"
+  integrity sha512-abv/qOcuPfk3URPfDzmZU1LKmuw8kT+0nIHvKrKgFrwifol/doWcdA4ZqsWQ8ENrFKkd67Mfpo/LovbIUsbt3w==
+
 methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
@@ -4434,6 +4578,27 @@ minimist@~0.0.1:
   resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
   integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
 
+minipass-collect@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.npmjs.org/minipass-collect/-/minipass-collect-1.0.2.tgz#22b813bf745dc6edba2576b940022ad6edc8c617"
+  integrity sha512-6T6lH0H8OG9kITm/Jm6tdooIbogG9e0tLgpY6mphXSm/A9u8Nq1ryBG+Qspiub9LjWlBPsPS3tWQ/Botq4FdxA==
+  dependencies:
+    minipass "^3.0.0"
+
+minipass-flush@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.npmjs.org/minipass-flush/-/minipass-flush-1.0.5.tgz#82e7135d7e89a50ffe64610a787953c4c4cbb373"
+  integrity sha512-JmQSYYpPUqX5Jyn1mXaRwOda1uQ8HP5KAT/oDSLCzt1BYRhQU0/hDtsB1ufZfEEzMZ9aAVmsBw8+FWsIXlClWw==
+  dependencies:
+    minipass "^3.0.0"
+
+minipass-pipeline@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.npmjs.org/minipass-pipeline/-/minipass-pipeline-1.2.2.tgz#3dcb6bb4a546e32969c7ad710f2c79a86abba93a"
+  integrity sha512-3JS5A2DKhD2g0Gg8x3yamO0pj7YeKGwVlDS90pF++kxptwx/F+B//roxf9SqYil5tQo65bijy+dAuAFZmYOouA==
+  dependencies:
+    minipass "^3.0.0"
+
 minipass@^2.6.0, minipass@^2.8.6, minipass@^2.9.0:
   version "2.9.0"
   resolved "https://registry.npmjs.org/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"
@@ -4442,6 +4607,13 @@ minipass@^2.6.0, minipass@^2.8.6, minipass@^2.9.0:
     safe-buffer "^5.1.2"
     yallist "^3.0.0"
 
+minipass@^3.0.0, minipass@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.npmjs.org/minipass/-/minipass-3.1.1.tgz#7607ce778472a185ad6d89082aa2070f79cedcd5"
+  integrity sha512-UFqVihv6PQgwj8/yTGvl9kPz7xIAY+R5z6XYjRInD3Gk3qx6QGSD6zEcpeG4Dy/lQnv1J6zv8ejV90hyYIKf3w==
+  dependencies:
+    yallist "^4.0.0"
+
 minizlib@^1.2.1:
   version "1.3.3"
   resolved "https://registry.npmjs.org/minizlib/-/minizlib-1.3.3.tgz#2290de96818a34c29551c8a8d301216bd65a861d"
@@ -4960,7 +5132,7 @@ p-is-promise@^2.0.0:
   resolved "https://registry.npmjs.org/p-is-promise/-/p-is-promise-2.1.0.tgz#918cebaea248a62cf7ffab8e3bca8c5f882fc42e"
   integrity sha512-Y3W0wlRPK8ZMRbNq97l4M5otioeA5lm1z7bkNkxCka8HSPjR0xRWmpCmc9utiaLP9Jb1eD8BgeIxTW4AIF45Pg==
 
-p-limit@^2.0.0:
+p-limit@^2.0.0, p-limit@^2.2.0, p-limit@^2.2.2:
   version "2.2.2"
   resolved "https://registry.npmjs.org/p-limit/-/p-limit-2.2.2.tgz#61279b67721f5287aa1c13a9a7fbbc48c9291b1e"
   integrity sha512-WGR+xHecKTr7EbUEhyLSh5Dube9JtdiG78ufaeLxTgpudf/20KqyMioIUZJAezlTIi6evxuoUs9YXc11cU+yzQ==
@@ -4974,11 +5146,25 @@ p-locate@^3.0.0:
   dependencies:
     p-limit "^2.0.0"
 
+p-locate@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.npmjs.org/p-locate/-/p-locate-4.1.0.tgz#a3428bb7088b3a60292f66919278b7c297ad4f07"
+  integrity sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==
+  dependencies:
+    p-limit "^2.2.0"
+
 p-map@^2.0.0:
   version "2.1.0"
   resolved "https://registry.npmjs.org/p-map/-/p-map-2.1.0.tgz#310928feef9c9ecc65b68b17693018a665cea175"
   integrity sha512-y3b8Kpd8OAN444hxfBbFfj1FY/RjtTd8tzYwhUqNYXx0fXx2iX4maP4Qr6qhIKbQXI02wTLAda4fYUbDagTUFw==
 
+p-map@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.npmjs.org/p-map/-/p-map-3.0.0.tgz#d704d9af8a2ba684e2600d9a215983d4141a979d"
+  integrity sha512-d3qXVTF/s+W+CdJ5A29wywV2n8CQQYahlgz2bFiA+4eVNJbHJodPZ+/gXwPGh0bOqA+j8S+6+ckmvLGPk1QpxQ==
+  dependencies:
+    aggregate-error "^3.0.0"
+
 p-retry@^3.0.1:
   version "3.0.1"
   resolved "https://registry.npmjs.org/p-retry/-/p-retry-3.0.1.tgz#316b4c8893e2c8dc1cfa891f406c4b422bebf328"
@@ -5073,6 +5259,11 @@ path-exists@^3.0.0:
   resolved "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
   integrity sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=
 
+path-exists@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz#513bdbe2d3b95d7762e8c1137efa195c6c61b5b3"
+  integrity sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==
+
 path-is-absolute@^1.0.0:
   version "1.0.1"
   resolved "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
@@ -5200,6 +5391,13 @@ pkg-dir@^3.0.0:
   dependencies:
     find-up "^3.0.0"
 
+pkg-dir@^4.1.0:
+  version "4.2.0"
+  resolved "https://registry.npmjs.org/pkg-dir/-/pkg-dir-4.2.0.tgz#f099133df7ede422e81d1d8448270eeb3e4261f3"
+  integrity sha512-HRDzbaKjC+AOWVXxAU/x54COGeIv9eb+6CkDSQoNTt4XyWoIJvuPsXizxu/Fr23EiekbtZwmh1IcIG/l/a10GQ==
+  dependencies:
+    find-up "^4.0.0"
+
 portfinder@^1.0.25:
   version "1.0.25"
   resolved "https://registry.npmjs.org/portfinder/-/portfinder-1.0.25.tgz#254fd337ffba869f4b9d37edc298059cb4d35eca"
@@ -5651,7 +5849,7 @@ rfdc@^1.1.4:
   resolved "https://registry.npmjs.org/rfdc/-/rfdc-1.1.4.tgz#ba72cc1367a0ccd9cf81a870b3b58bd3ad07f8c2"
   integrity sha512-5C9HXdzK8EAqN7JDif30jqsBzavB7wLpaubisuQIGHWf2gUXSpzy6ArX/+Da8RjFpagWsCn+pIgxTMAmKw9Zug==
 
-rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1, rimraf@^2.6.3:
+rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1, rimraf@^2.6.3, rimraf@^2.7.1:
   version "2.7.1"
   resolved "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz#35797f13a7fdadc566142c29d4f07ccad483e3ec"
   integrity sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==
@@ -5737,6 +5935,14 @@ schema-utils@^1.0.0:
     ajv-errors "^1.0.0"
     ajv-keywords "^3.1.0"
 
+schema-utils@^2.6.4:
+  version "2.6.4"
+  resolved "https://registry.npmjs.org/schema-utils/-/schema-utils-2.6.4.tgz#a27efbf6e4e78689d91872ee3ccfa57d7bdd0f53"
+  integrity sha512-VNjcaUxVnEeun6B2fiiUDjXXBtD4ZSH7pdbfIu1pOFwgptDPLMo/z9jr4sUfsjFVPqDCEin/F7IYlq7/E6yDbQ==
+  dependencies:
+    ajv "^6.10.2"
+    ajv-keywords "^3.4.1"
+
 select-hose@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"
@@ -5783,11 +5989,6 @@ send@0.17.1:
     range-parser "~1.2.1"
     statuses "~1.5.0"
 
-serialize-javascript@^1.7.0:
-  version "1.9.1"
-  resolved "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-1.9.1.tgz#cfc200aef77b600c47da9bb8149c943e798c2fdb"
-  integrity sha512-0Vb/54WJ6k5v8sSWN09S0ora+Hnr+cX40r9F170nT+mSkaxltoE/7R3OrIdBSUv1OoiobH1QoWQbCnAO+e8J1A==
-
 serialize-javascript@^2.1.2:
   version "2.1.2"
   resolved "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-2.1.2.tgz#ecec53b0e0317bdc95ef76ab7074b7384785fa61"
@@ -6088,6 +6289,14 @@ ssri@^6.0.1:
   dependencies:
     figgy-pudding "^3.5.1"
 
+ssri@^7.0.0:
+  version "7.1.0"
+  resolved "https://registry.npmjs.org/ssri/-/ssri-7.1.0.tgz#92c241bf6de82365b5c7fb4bd76e975522e1294d"
+  integrity sha512-77/WrDZUWocK0mvA5NTRQyveUf+wsrIc6vyrxpS8tVvYBcX215QbafrJR3KtkpskIzoFLqqNuuYQvxaMjXJ/0g==
+  dependencies:
+    figgy-pudding "^3.5.1"
+    minipass "^3.1.1"
+
 stack-trace@0.0.9:
   version "0.0.9"
   resolved "https://registry.npmjs.org/stack-trace/-/stack-trace-0.0.9.tgz#a8f6eaeca90674c333e7c43953f275b451510695"
@@ -6279,7 +6488,7 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
-supports-color@^7.1.0:
+supports-color@^7.0.0, supports-color@^7.1.0:
   version "7.1.0"
   resolved "https://registry.npmjs.org/supports-color/-/supports-color-7.1.0.tgz#68e32591df73e25ad1c4b49108a2ec507962bfd1"
   integrity sha512-oRSIpR8pxT1Wr2FquTNnGet79b3BWljqOuoW/h4oBhxJ/HUbX5nX6JSruTkvXDCFMwDPvsaTTbvMLKZWSy0R5g==
@@ -6319,7 +6528,22 @@ terser-webpack-plugin@^1.4.3:
     webpack-sources "^1.4.0"
     worker-farm "^1.7.0"
 
-terser@^4.1.2:
+terser-webpack-plugin@^2.3.5:
+  version "2.3.5"
+  resolved "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-2.3.5.tgz#5ad971acce5c517440ba873ea4f09687de2f4a81"
+  integrity sha512-WlWksUoq+E4+JlJ+h+U+QUzXpcsMSSNXkDy9lBVkSqDn1w23Gg29L/ary9GeJVYCGiNJJX7LnVc4bwL1N3/g1w==
+  dependencies:
+    cacache "^13.0.1"
+    find-cache-dir "^3.2.0"
+    jest-worker "^25.1.0"
+    p-limit "^2.2.2"
+    schema-utils "^2.6.4"
+    serialize-javascript "^2.1.2"
+    source-map "^0.6.1"
+    terser "^4.4.3"
+    webpack-sources "^1.4.3"
+
+terser@^4.1.2, terser@^4.4.3:
   version "4.6.3"
   resolved "https://registry.npmjs.org/terser/-/terser-4.6.3.tgz#e33aa42461ced5238d352d2df2a67f21921f8d87"
   integrity sha512-Lw+ieAXmY69d09IIc/yqeBqXpEQIpDGZqT34ui1QWXIUpR2RjbqEkT8X7Lgex19hslSqcWM5iMN2kM11eMsESQ==
@@ -6554,29 +6778,6 @@ uglify-js@3.4.x:
     commander "~2.19.0"
     source-map "~0.6.1"
 
-uglify-js@^3.6.0:
-  version "3.7.7"
-  resolved "https://registry.npmjs.org/uglify-js/-/uglify-js-3.7.7.tgz#21e52c7dccda80a53bf7cde69628a7e511aec9c9"
-  integrity sha512-FeSU+hi7ULYy6mn8PKio/tXsdSXN35lm4KgV2asx00kzrLU9Pi3oAslcJT70Jdj7PHX29gGUPOT6+lXGBbemhA==
-  dependencies:
-    commander "~2.20.3"
-    source-map "~0.6.1"
-
-uglifyjs-webpack-plugin@^2.2.0:
-  version "2.2.0"
-  resolved "https://registry.npmjs.org/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-2.2.0.tgz#e75bc80e7f1937f725954c9b4c5a1e967ea9d0d7"
-  integrity sha512-mHSkufBmBuJ+KHQhv5H0MXijtsoA1lynJt1lXOaotja8/I0pR4L9oGaPIZw+bQBOFittXZg9OC1sXSGO9D9ZYg==
-  dependencies:
-    cacache "^12.0.2"
-    find-cache-dir "^2.1.0"
-    is-wsl "^1.1.0"
-    schema-utils "^1.0.0"
-    serialize-javascript "^1.7.0"
-    source-map "^0.6.1"
-    uglify-js "^3.6.0"
-    webpack-sources "^1.4.0"
-    worker-farm "^1.7.0"
-
 ultron@~1.1.0:
   version "1.1.1"
   resolved "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
@@ -6837,7 +7038,7 @@ webpack-simple-progress-plugin@^0.0.4:
     object-assign "^4.1.0"
     progress "^1.1.8"
 
-webpack-sources@^1.4.0, webpack-sources@^1.4.1:
+webpack-sources@^1.4.0, webpack-sources@^1.4.1, webpack-sources@^1.4.3:
   version "1.4.3"
   resolved "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.4.3.tgz#eedd8ec0b928fbf1cbfe994e22d2d890f330a933"
   integrity sha512-lgTS3Xhv1lCOKo7SA5TjKXMjpSM4sBjNV5+q2bqesbSPs5FjGmU6jjtBSkX9b4qW87vDIsCIlUPOEhbZrMdjeQ==
@@ -6992,6 +7193,11 @@ yallist@^3.0.0, yallist@^3.0.2, yallist@^3.0.3:
   resolved "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
   integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
 
+yallist@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
+  integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==
+
 yargs-parser@13.1.1, yargs-parser@^13.1.0, yargs-parser@^13.1.1:
   version "13.1.1"
   resolved "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz#d26058532aa06d365fe091f6a1fc06b2f7e5eca0"