diff --git a/packages/angular_devkit/build_angular/package.json b/packages/angular_devkit/build_angular/package.json
index 16c5bf4e9cb8..954b440b1e3f 100644
--- a/packages/angular_devkit/build_angular/package.json
+++ b/packages/angular_devkit/build_angular/package.json
@@ -14,9 +14,9 @@
     "ajv": "~6.4.0",
     "autoprefixer": "^8.4.1",
     "circular-dependency-plugin": "^5.0.2",
-    "clean-css": "^4.1.11",
+    "clean-css": "^4.2.1",
     "copy-webpack-plugin": "^4.5.2",
-    "file-loader": "^1.1.11",
+    "file-loader": "^2.0.0",
     "glob": "^7.0.3",
     "html-webpack-plugin": "^3.0.6",
     "istanbul": "^0.4.5",
@@ -24,34 +24,34 @@
     "karma-source-map-support": "^1.2.0",
     "less": "^3.7.1",
     "less-loader": "^4.1.0",
-    "license-webpack-plugin": "^1.3.1",
+    "license-webpack-plugin": "^1.4.0",
     "loader-utils": "^1.1.0",
-    "mini-css-extract-plugin": "~0.4.0",
+    "mini-css-extract-plugin": "^0.4.2",
     "minimatch": "^3.0.4",
     "parse5": "^4.0.0",
     "opn": "^5.1.0",
     "portfinder": "^1.0.13",
     "postcss": "^6.0.22",
     "postcss-import": "^11.1.0",
-    "postcss-loader": "^2.1.5",
+    "postcss-loader": "^2.1.6",
     "raw-loader": "^0.5.1",
     "rxjs": "~6.2.0",
     "sass-loader": "^7.1.0",
     "semver": "^5.5.0",
     "source-map-support": "^0.5.0",
-    "source-map-loader": "^0.2.3",
+    "source-map-loader": "^0.2.4",
     "stats-webpack-plugin": "^0.6.2",
-    "style-loader": "^0.21.0",
+    "style-loader": "^0.23.0",
     "stylus": "^0.54.5",
     "stylus-loader": "^3.0.2",
     "tree-kill": "^1.2.0",
     "terser-webpack-plugin": "^1.0.2",
-    "url-loader": "^1.0.1",
-    "webpack": "^4.15.1",
-    "webpack-dev-middleware": "^3.1.3",
-    "webpack-dev-server": "^3.1.4",
-    "webpack-merge": "^4.1.2",
-    "webpack-sources": "^1.1.0",
+    "url-loader": "^1.1.1",
+    "webpack": "^4.17.1",
+    "webpack-dev-middleware": "^3.2.0",
+    "webpack-dev-server": "^3.1.7",
+    "webpack-merge": "^4.1.4",
+    "webpack-sources": "^1.2.0",
     "webpack-subresource-integrity": "^1.1.0-rc.4"
   },
   "optionalDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 5c7d750d3c20..a0887ea1b5dc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -546,17 +546,6 @@
     "@webassemblyjs/wast-parser" "1.5.13"
     long "^3.2.0"
 
-"@webpack-contrib/schema-utils@^1.0.0-beta.0":
-  version "1.0.0-beta.0"
-  resolved "https://registry.yarnpkg.com/@webpack-contrib/schema-utils/-/schema-utils-1.0.0-beta.0.tgz#bf9638c9464d177b48209e84209e23bee2eb4f65"
-  dependencies:
-    ajv "^6.1.0"
-    ajv-keywords "^3.1.0"
-    chalk "^2.3.2"
-    strip-ansi "^4.0.0"
-    text-table "^0.2.0"
-    webpack-log "^1.1.2"
-
 JSONStream@^1.0.4:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.3.tgz#27b4b8fbbfeab4e71bcf551e7f27be8d952239bf"
@@ -656,6 +645,10 @@ ansi-align@^2.0.0:
   dependencies:
     string-width "^2.0.0"
 
+ansi-colors@^3.0.0:
+  version "3.0.5"
+  resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.0.5.tgz#cb9dc64993b64fd6945485f797fc3853137d9a7b"
+
 ansi-escapes@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.1.0.tgz#f73207bb81207d75fd6c83f125af26eea378ca30"
@@ -1414,7 +1407,7 @@ chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1, chalk@^2.3.2, chalk@^2.4.1:
+chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1, chalk@^2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
   dependencies:
@@ -1510,6 +1503,12 @@ clean-css@^4.1.11:
   dependencies:
     source-map "~0.6.0"
 
+clean-css@^4.2.1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/clean-css/-/clean-css-4.2.1.tgz#2d411ef76b8569b6d0c84068dabe85b0aa5e5c17"
+  dependencies:
+    source-map "~0.6.0"
+
 cli-boxes@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/cli-boxes/-/cli-boxes-1.0.0.tgz#4fa917c3e59c94a004cd61f8ee509da651687143"
@@ -2026,6 +2025,16 @@ cross-spawn@^5.0.1:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
+cross-spawn@^6.0.0:
+  version "6.0.5"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
+  dependencies:
+    nice-try "^1.0.4"
+    path-key "^2.0.1"
+    semver "^5.5.0"
+    shebang-command "^1.2.0"
+    which "^1.2.9"
+
 crypto-browserify@^3.11.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
@@ -2156,6 +2165,12 @@ decamelize@^1.0.0, decamelize@^1.1.0, decamelize@^1.1.1, decamelize@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
 
+decamelize@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-2.0.0.tgz#656d7bbc8094c4c788ea53c5840908c9c7d063c7"
+  dependencies:
+    xregexp "4.0.0"
+
 decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
@@ -2178,6 +2193,13 @@ deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
 
+default-gateway@^2.6.0:
+  version "2.7.2"
+  resolved "https://registry.yarnpkg.com/default-gateway/-/default-gateway-2.7.2.tgz#b7ef339e5e024b045467af403d50348db4642d0f"
+  dependencies:
+    execa "^0.10.0"
+    ip-regex "^2.1.0"
+
 default-require-extensions@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/default-require-extensions/-/default-require-extensions-2.0.0.tgz#f5f8fbb18a7d6d50b21f641f649ebb522cfe24f7"
@@ -2667,6 +2689,18 @@ evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
     md5.js "^1.3.4"
     safe-buffer "^5.1.1"
 
+execa@^0.10.0:
+  version "0.10.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.10.0.tgz#ff456a8f53f90f8eccc71a96d11bdfc7f082cb50"
+  dependencies:
+    cross-spawn "^6.0.0"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
 execa@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-0.7.0.tgz#944becd34cc41ee32a63a9faf27ad5a65fc59777"
@@ -2859,12 +2893,12 @@ figures@^2.0.0:
   dependencies:
     escape-string-regexp "^1.0.5"
 
-file-loader@^1.1.11:
-  version "1.1.11"
-  resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-1.1.11.tgz#6fe886449b0f2a936e43cabaac0cdbfb369506f8"
+file-loader@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-2.0.0.tgz#39749c82f020b9e85901dcff98e8004e6401cfde"
   dependencies:
     loader-utils "^1.0.2"
-    schema-utils "^0.4.5"
+    schema-utils "^1.0.0"
 
 filename-regex@^2.0.0:
   version "2.0.1"
@@ -3726,6 +3760,13 @@ internal-ip@1.2.0:
   dependencies:
     meow "^3.3.0"
 
+internal-ip@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/internal-ip/-/internal-ip-3.0.1.tgz#df5c99876e1d2eb2ea2d74f520e3f669a00ece27"
+  dependencies:
+    default-gateway "^2.6.0"
+    ipaddr.js "^1.5.2"
+
 into-stream@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/into-stream/-/into-stream-3.1.0.tgz#96fb0a936c12babd6ff1752a17d05616abd094c6"
@@ -3743,6 +3784,10 @@ invert-kv@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
 
+ip-regex@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/ip-regex/-/ip-regex-2.1.0.tgz#fa78bf5d2e6913c911ce9f819ee5146bb6d844e9"
+
 ip@^1.1.0, ip@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.1.5.tgz#bdded70114290828c0a039e72ef25f5aaec4354a"
@@ -3751,6 +3796,10 @@ ipaddr.js@1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.8.0.tgz#eaa33d6ddd7ace8f7f6fe0c9ca0440e706738b1e"
 
+ipaddr.js@^1.5.2:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.8.1.tgz#fa4b79fa47fd3def5e3b159825161c0a519c9427"
+
 is-accessor-descriptor@^0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
@@ -4468,9 +4517,9 @@ license-checker@^20.1.0:
     strip-ansi "^4.0.0"
     treeify "^1.1.0"
 
-license-webpack-plugin@^1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/license-webpack-plugin/-/license-webpack-plugin-1.3.1.tgz#688b76472188ef597918b7cae3eec7dc2fa5a0e8"
+license-webpack-plugin@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/license-webpack-plugin/-/license-webpack-plugin-1.4.0.tgz#be504a849ba7d736f1a6da4b133864f30af885fa"
   dependencies:
     ejs "^2.5.7"
 
@@ -4503,7 +4552,7 @@ loader-runner@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.0.tgz#f482aea82d543e07921700d5a46ef26fdac6b8a2"
 
-loader-utils@^0.2.16, loader-utils@~0.2.2:
+loader-utils@^0.2.16:
   version "0.2.17"
   resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-0.2.17.tgz#f86e6374d43205a6e6c60e9196f17c0299bfb348"
   dependencies:
@@ -4845,12 +4894,12 @@ mimic-response@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.1.tgz#4923538878eef42063cb8a3e3b0798781487ab1b"
 
-mini-css-extract-plugin@~0.4.0:
-  version "0.4.1"
-  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-0.4.1.tgz#d2bcf77bb2596b8e4bd9257e43d3f9164c2e86cb"
+mini-css-extract-plugin@^0.4.2:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-0.4.2.tgz#b3ecc0d6b1bbe5ff14add42b946a7b200cf78651"
   dependencies:
-    "@webpack-contrib/schema-utils" "^1.0.0-beta.0"
     loader-utils "^1.1.0"
+    schema-utils "^1.0.0"
     webpack-sources "^1.1.0"
 
 minimalistic-assert@^1.0.0, minimalistic-assert@^1.0.1:
@@ -5058,6 +5107,10 @@ ng-packagr@^4.1.0:
     uglify-js "^3.0.7"
     update-notifier "^2.3.0"
 
+nice-try@^1.0.4:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
+
 no-case@^2.2.0:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/no-case/-/no-case-2.3.2.tgz#60b813396be39b3f1288a4c1ed5d1e7d28b464ac"
@@ -5623,7 +5676,7 @@ path-is-inside@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
 
-path-key@^2.0.0:
+path-key@^2.0.0, path-key@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
 
@@ -5725,7 +5778,7 @@ postcss-load-config@^2.0.0:
     cosmiconfig "^4.0.0"
     import-cwd "^2.0.0"
 
-postcss-loader@^2.1.5:
+postcss-loader@^2.1.6:
   version "2.1.6"
   resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-2.1.6.tgz#1d7dd7b17c6ba234b9bed5af13e0bea40a42d740"
   dependencies:
@@ -6450,7 +6503,7 @@ schema-utils@^0.3.0:
   dependencies:
     ajv "^5.0.0"
 
-schema-utils@^0.4.0, schema-utils@^0.4.3, schema-utils@^0.4.4, schema-utils@^0.4.5:
+schema-utils@^0.4.0, schema-utils@^0.4.4, schema-utils@^0.4.5:
   version "0.4.5"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.5.tgz#21836f0608aac17b78f9e3e24daff14a5ca13a3e"
   dependencies:
@@ -6742,13 +6795,12 @@ source-list-map@~0.1.7:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-0.1.8.tgz#c550b2ab5427f6b3f21f5afead88c4f5587b2106"
 
-source-map-loader@^0.2.3:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/source-map-loader/-/source-map-loader-0.2.3.tgz#d4b0c8cd47d54edce3e6bfa0f523f452b5b0e521"
+source-map-loader@^0.2.4:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/source-map-loader/-/source-map-loader-0.2.4.tgz#c18b0dc6e23bf66f6792437557c569a11e072271"
   dependencies:
     async "^2.5.0"
-    loader-utils "~0.2.2"
-    source-map "~0.6.1"
+    loader-utils "^1.1.0"
 
 source-map-resolve@^0.5.0:
   version "0.5.2"
@@ -7086,9 +7138,9 @@ strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
 
-style-loader@^0.21.0:
-  version "0.21.0"
-  resolved "https://registry.yarnpkg.com/style-loader/-/style-loader-0.21.0.tgz#68c52e5eb2afc9ca92b6274be277ee59aea3a852"
+style-loader@^0.23.0:
+  version "0.23.0"
+  resolved "https://registry.yarnpkg.com/style-loader/-/style-loader-0.23.0.tgz#8377fefab68416a2e05f1cabd8c3a3acfcce74f1"
   dependencies:
     loader-utils "^1.1.0"
     schema-utils "^0.4.5"
@@ -7198,10 +7250,6 @@ text-hex@1.0.x:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/text-hex/-/text-hex-1.0.0.tgz#69dc9c1b17446ee79a92bf5b884bb4b9127506f5"
 
-text-table@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
-
 through2@^2.0.0, through2@^2.0.2, through2@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
@@ -7551,13 +7599,13 @@ url-join@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/url-join/-/url-join-4.0.0.tgz#4d3340e807d3773bda9991f8305acdcc2a665d2a"
 
-url-loader@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/url-loader/-/url-loader-1.0.1.tgz#61bc53f1f184d7343da2728a1289ef8722ea45ee"
+url-loader@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/url-loader/-/url-loader-1.1.1.tgz#4d1f3b4f90dde89f02c008e662d604d7511167c1"
   dependencies:
     loader-utils "^1.1.0"
     mime "^2.0.3"
-    schema-utils "^0.4.3"
+    schema-utils "^1.0.0"
 
 url-parse-lax@^1.0.0:
   version "1.0.0"
@@ -7639,7 +7687,7 @@ utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
 
-uuid@^3.0.1, uuid@^3.1.0:
+uuid@^3.0.1, uuid@^3.1.0, uuid@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
 
@@ -7726,7 +7774,7 @@ webpack-core@^0.6.8:
     source-list-map "~0.1.7"
     source-map "~0.4.1"
 
-webpack-dev-middleware@3.1.3, webpack-dev-middleware@^3.1.3:
+webpack-dev-middleware@3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.1.3.tgz#8b32aa43da9ae79368c1bf1183f2b6cf5e1f39ed"
   dependencies:
@@ -7738,6 +7786,18 @@ webpack-dev-middleware@3.1.3, webpack-dev-middleware@^3.1.3:
     url-join "^4.0.0"
     webpack-log "^1.0.1"
 
+webpack-dev-middleware@3.2.0, webpack-dev-middleware@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.2.0.tgz#a20ceef194873710052da678f3c6ee0aeed92552"
+  dependencies:
+    loud-rejection "^1.6.0"
+    memory-fs "~0.4.1"
+    mime "^2.3.1"
+    path-is-absolute "^1.0.0"
+    range-parser "^1.0.3"
+    url-join "^4.0.0"
+    webpack-log "^2.0.0"
+
 webpack-dev-server@^3.1.4:
   version "3.1.5"
   resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.5.tgz#87477252e1ac6789303fb8cd3e585fa5d508a401"
@@ -7771,6 +7831,39 @@ webpack-dev-server@^3.1.4:
     webpack-log "^1.1.2"
     yargs "11.0.0"
 
+webpack-dev-server@^3.1.7:
+  version "3.1.7"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.7.tgz#cbf8071cc092d9493732aee4f062f0e065994854"
+  dependencies:
+    ansi-html "0.0.7"
+    bonjour "^3.5.0"
+    chokidar "^2.0.0"
+    compression "^1.5.2"
+    connect-history-api-fallback "^1.3.0"
+    debug "^3.1.0"
+    del "^3.0.0"
+    express "^4.16.2"
+    html-entities "^1.2.0"
+    http-proxy-middleware "~0.18.0"
+    import-local "^1.0.0"
+    internal-ip "^3.0.1"
+    ip "^1.1.5"
+    killable "^1.0.0"
+    loglevel "^1.4.1"
+    opn "^5.1.0"
+    portfinder "^1.0.9"
+    schema-utils "^1.0.0"
+    selfsigned "^1.9.1"
+    serve-index "^1.7.2"
+    sockjs "0.3.19"
+    sockjs-client "1.1.5"
+    spdy "^3.4.1"
+    strip-ansi "^3.0.0"
+    supports-color "^5.1.0"
+    webpack-dev-middleware "3.2.0"
+    webpack-log "^2.0.0"
+    yargs "12.0.1"
+
 webpack-log@^1.0.1, webpack-log@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/webpack-log/-/webpack-log-1.2.0.tgz#a4b34cda6b22b518dbb0ab32e567962d5c72a43d"
@@ -7780,28 +7873,42 @@ webpack-log@^1.0.1, webpack-log@^1.1.2:
     loglevelnext "^1.0.1"
     uuid "^3.1.0"
 
-webpack-merge@^4.1.2:
+webpack-log@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/webpack-log/-/webpack-log-2.0.0.tgz#5b7928e0637593f119d32f6227c1e0ac31e1b47f"
+  dependencies:
+    ansi-colors "^3.0.0"
+    uuid "^3.3.2"
+
+webpack-merge@^4.1.4:
   version "4.1.4"
   resolved "https://registry.yarnpkg.com/webpack-merge/-/webpack-merge-4.1.4.tgz#0fde38eabf2d5fd85251c24a5a8c48f8a3f4eb7b"
   dependencies:
     lodash "^4.17.5"
 
-webpack-sources@^1.0.1, webpack-sources@^1.1.0:
+webpack-sources@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.1.0.tgz#a101ebae59d6507354d71d8013950a3a8b7a5a54"
   dependencies:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
+webpack-sources@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.2.0.tgz#18181e0d013fce096faf6f8e6d41eeffffdceac2"
+  dependencies:
+    source-list-map "^2.0.0"
+    source-map "~0.6.1"
+
 webpack-subresource-integrity@^1.1.0-rc.4:
   version "1.1.0-rc.4"
   resolved "https://registry.yarnpkg.com/webpack-subresource-integrity/-/webpack-subresource-integrity-1.1.0-rc.4.tgz#c5c4e3d690f9d2f64a9550e07a8767f9796aa5d8"
   dependencies:
     webpack-core "^0.6.8"
 
-webpack@^4.0.0, webpack@^4.15.1, webpack@^4.6.0:
-  version "4.16.4"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.16.4.tgz#6b020f76483bc66339164c296d89978aa100d37a"
+webpack@^4.0.0, webpack@^4.17.1, webpack@^4.6.0:
+  version "4.17.2"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.17.2.tgz#49feb20205bd15f0a5f1fe0a12097d5d9931878d"
   dependencies:
     "@webassemblyjs/ast" "1.5.13"
     "@webassemblyjs/helper-module-context" "1.5.13"
@@ -7827,7 +7934,7 @@ webpack@^4.0.0, webpack@^4.15.1, webpack@^4.6.0:
     tapable "^1.0.0"
     uglifyjs-webpack-plugin "^1.2.4"
     watchpack "^1.5.0"
-    webpack-sources "^1.0.1"
+    webpack-sources "^1.2.0"
 
 websocket-driver@>=0.5.1:
   version "0.7.0"
@@ -7967,6 +8074,10 @@ xmlhttprequest-ssl@~1.5.4:
   version "1.5.5"
   resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz#c2876b06168aadc40e57d97e81191ac8f4398b3e"
 
+xregexp@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.0.0.tgz#e698189de49dd2a18cc5687b05e17c8e43943020"
+
 xtend@^4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
@@ -7981,7 +8092,7 @@ y18n@^3.2.0, y18n@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
 
-y18n@^4.0.0:
+"y18n@^3.2.1 || ^4.0.0", y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
 
@@ -7993,6 +8104,12 @@ yallist@^3.0.0, yallist@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
 
+yargs-parser@^10.1.0:
+  version "10.1.0"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-10.1.0.tgz#7202265b89f7e9e9f2e5765e0fe735a905edbaa8"
+  dependencies:
+    camelcase "^4.1.0"
+
 yargs-parser@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-5.0.0.tgz#275ecf0d7ffe05c77e64e7c86e4cd94bf0e1228a"
@@ -8022,6 +8139,23 @@ yargs@11.0.0:
     y18n "^3.2.1"
     yargs-parser "^9.0.2"
 
+yargs@12.0.1:
+  version "12.0.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.1.tgz#6432e56123bb4e7c3562115401e98374060261c2"
+  dependencies:
+    cliui "^4.0.0"
+    decamelize "^2.0.0"
+    find-up "^3.0.0"
+    get-caller-file "^1.0.1"
+    os-locale "^2.0.0"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^2.0.0"
+    which-module "^2.0.0"
+    y18n "^3.2.1 || ^4.0.0"
+    yargs-parser "^10.1.0"
+
 yargs@^3.10.0:
   version "3.32.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.32.0.tgz#03088e9ebf9e756b69751611d2a5ef591482c995"