diff --git a/package.json b/package.json
index 24221b705..d1c580415 100644
--- a/package.json
+++ b/package.json
@@ -35,9 +35,11 @@
     "ajv": "^8.0.0",
     "ansi-colors": "^4.1.1",
     "browserslist": "^4.16.1",
+    "cacache": "^15.0.6",
     "chokidar": "^3.5.1",
     "commander": "^7.0.0",
     "cssnano": "^5.0.0",
+    "find-cache-dir": "^3.3.1",
     "glob": "^7.1.6",
     "injection-js": "^2.4.0",
     "jsonc-parser": "^3.0.0",
@@ -71,9 +73,11 @@
     "@commitlint/cli": "^12.0.0",
     "@commitlint/config-angular": "^12.0.0",
     "@types/acorn": "^4.0.3",
+    "@types/cacache": "^15.0.0",
     "@types/chai": "^4.0.0",
     "@types/chokidar": "^1.7.5",
     "@types/cssnano": "^4.0.0",
+    "@types/find-cache-dir": "^3.2.0",
     "@types/fs-extra": "^9.0.10",
     "@types/glob": "^7.0.0",
     "@types/jasmine": "^3.0.0",
diff --git a/src/lib/styles/stylesheet-processor-worker.ts b/src/lib/styles/stylesheet-processor-worker.ts
index fb4804e94..6e943a2a8 100644
--- a/src/lib/styles/stylesheet-processor-worker.ts
+++ b/src/lib/styles/stylesheet-processor-worker.ts
@@ -1,3 +1,5 @@
+import * as cacache from 'cacache';
+import { createHash } from 'crypto';
 import * as path from 'path';
 import postcss, { LazyResult } from 'postcss';
 import * as postcssUrl from 'postcss-url';
@@ -8,28 +10,51 @@ import * as postcssPresetEnv from 'postcss-preset-env';
 import { CssUrl, WorkerOptions, WorkerResult } from './stylesheet-processor';
 import { readFile } from '../utils/fs';
 
+const ngPackagrVersion = require('../../../package.json').version;
+
 async function processCss({
   filePath,
   browserslistData,
   cssUrl,
   styleIncludePaths,
   basePath,
+  cachePath,
 }: WorkerOptions): Promise<WorkerResult> {
+  const content = await readFile(filePath, 'utf8');
+
   // Render pre-processor language (sass, styl, less)
-  const renderedCss = await renderCss(filePath, basePath, styleIncludePaths);
+  const renderedCss = await renderCss(filePath, content, basePath, styleIncludePaths);
 
   // Render postcss (autoprefixing and friends)
   const result = await optimizeCss(filePath, renderedCss, browserslistData, cssUrl);
 
+  // We cannot cache CSS re-rendering phase, because a transitive dependency via (@import) can case different CSS output.
+  // Example a change in a mixin or SCSS variable.
+  const key = createHash('sha1')
+    .update(ngPackagrVersion)
+    .update(result.css)
+    .update(browserslistData.join(''))
+    .digest('base64');
+
+  const entry = await cacache.get.info(cachePath, key);
+  if (entry) {
+    return {
+      css: await readFile(entry.path, 'utf8'),
+      warnings: [],
+    };
+  }
+
+  // Add to cache
+  await cacache.put(cachePath, key, result.css);
+
   return {
     css: result.css,
     warnings: result.warnings().map(w => w.toString()),
   };
 }
 
-async function renderCss(filePath: string, basePath, styleIncludePaths?: string[]): Promise<string> {
+async function renderCss(filePath: string, css: string, basePath, styleIncludePaths?: string[]): Promise<string> {
   const ext = path.extname(filePath);
-  const content = await readFile(filePath, 'utf8');
 
   switch (ext) {
     case '.sass':
@@ -53,7 +78,7 @@ async function renderCss(filePath: string, basePath, styleIncludePaths?: string[
       return sassCompiler
         .renderSync({
           file: filePath,
-          data: content,
+          data: css,
           indentedSyntax: '.sass' === ext,
           importer: await import('node-sass-tilde-importer'),
           includePaths: styleIncludePaths,
@@ -61,20 +86,20 @@ async function renderCss(filePath: string, basePath, styleIncludePaths?: string[
         .css.toString();
     }
     case '.less': {
-      const { css } = await (await import('less')).render(content, {
+      const { css: content } = await (await import('less')).render(css, {
         filename: filePath,
         javascriptEnabled: true,
         paths: styleIncludePaths,
       });
 
-      return css;
+      return content;
     }
     case '.styl':
     case '.stylus': {
       const stylus = await import('stylus');
 
       return (
-        stylus(content)
+        stylus(css)
           // add paths for resolve
           .set('paths', [basePath, '.', ...styleIncludePaths, 'node_modules'])
           // add support for resolving plugins from node_modules
@@ -87,7 +112,7 @@ async function renderCss(filePath: string, basePath, styleIncludePaths?: string[
     }
     case '.css':
     default:
-      return content;
+      return css;
   }
 }
 
diff --git a/src/lib/styles/stylesheet-processor.ts b/src/lib/styles/stylesheet-processor.ts
index c6339814b..2852e4e58 100644
--- a/src/lib/styles/stylesheet-processor.ts
+++ b/src/lib/styles/stylesheet-processor.ts
@@ -1,5 +1,7 @@
 import * as browserslist from 'browserslist';
 import { join } from 'path';
+import * as findCacheDirectory from 'find-cache-dir';
+import { tmpdir } from 'os';
 import { MessageChannel, receiveMessageOnPort, Worker } from 'worker_threads';
 
 import * as log from '../utils/log';
@@ -14,6 +16,7 @@ export interface WorkerOptions {
   browserslistData: string[];
   cssUrl?: CssUrl;
   styleIncludePaths?: string[];
+  cachePath: string;
 }
 
 export interface WorkerResult {
@@ -25,8 +28,15 @@ export interface WorkerResult {
 export class StylesheetProcessor {
   private browserslistData: string[] | undefined;
   private worker: Worker | undefined;
+  private readonly cachePath: string;
 
-  constructor(private readonly basePath: string, private readonly cssUrl?: CssUrl, private readonly styleIncludePaths?: string[]) { }
+  constructor(
+    private readonly basePath: string,
+    private readonly cssUrl?: CssUrl,
+    private readonly styleIncludePaths?: string[],
+  ) {
+    this.cachePath = findCacheDirectory({ name: 'ng-packagr-styles' }) || tmpdir();
+  }
 
   process(filePath: string) {
     if (!this.worker) {
@@ -44,15 +54,14 @@ export class StylesheetProcessor {
       cssUrl: this.cssUrl,
       styleIncludePaths: this.styleIncludePaths,
       browserslistData: this.browserslistData,
+      cachePath: this.cachePath,
     };
 
     const ioChannel = new MessageChannel();
 
     try {
       const signal = new Int32Array(new SharedArrayBuffer(4));
-      this.worker.postMessage({ signal, port: ioChannel.port1, workerOptions }, [
-        ioChannel.port1
-      ]);
+      this.worker.postMessage({ signal, port: ioChannel.port1, workerOptions }, [ioChannel.port1]);
 
       // Sleep until signal[0] is 0
       Atomics.wait(signal, 0, 0);
diff --git a/yarn.lock b/yarn.lock
index 51b3d747f..77c13303f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -426,6 +426,14 @@
   resolved "https://registry.yarnpkg.com/@jsdevtools/ono/-/ono-7.1.3.tgz#9df03bbd7c696a5c58885c34aa06da41c8543796"
   integrity sha512-4JQNk+3mVzK3xh2rqd6RB4J46qUR19azEHBneZyTZM+c456qOrbbM/5xcR8huNCCcbVt7+UmizG6GuUvPvKUYg==
 
+"@npmcli/move-file@^1.0.1":
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/@npmcli/move-file/-/move-file-1.1.2.tgz#1a82c3e372f7cae9253eb66d72543d6b8685c674"
+  integrity sha512-1SUf/Cg2GzGDyaf15aR9St9TWlb+XvbZXWpDx8YKs7MLzMH/BCeopv+y9vzrzgkfykCGuWOlSu3mZhj2+FQcrg==
+  dependencies:
+    mkdirp "^1.0.4"
+    rimraf "^3.0.2"
+
 "@rollup/plugin-commonjs@^18.0.0":
   version "18.0.0"
   resolved "https://registry.yarnpkg.com/@rollup/plugin-commonjs/-/plugin-commonjs-18.0.0.tgz#50dc7518b5aa9e66a270e529ea85115d269825c4"
@@ -529,6 +537,13 @@
   dependencies:
     browserslist "*"
 
+"@types/cacache@^15.0.0":
+  version "15.0.0"
+  resolved "https://registry.yarnpkg.com/@types/cacache/-/cacache-15.0.0.tgz#b91c7f35f4aa11233cef8a69c4e24ee5996cdf40"
+  integrity sha512-SNTTXhHY+2Z1wkxUARvyswbWluo5R5M7spcMXSaOqPbNs1dWJopMa2QaaEh3kvEcOK4LCTZ25PU9LJ3EJmDUSQ==
+  dependencies:
+    "@types/node" "*"
+
 "@types/chai@^4.0.0":
   version "4.2.17"
   resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.17.tgz#85f9f0610f514b22a94125d441f73eef65bde5cc"
@@ -564,6 +579,11 @@
   resolved "https://registry.yarnpkg.com/@types/events/-/events-3.0.0.tgz#2862f3f58a9a7f7c3e78d79f130dd4d71c25c2a7"
   integrity sha512-EaObqwIvayI5a8dCzhFrjKzVwKLxjoG9T6Ppd5CEo07LRKfQ8Yokw54r5+Wq7FaBQ+yXRvQAYPrHwya1/UFt9g==
 
+"@types/find-cache-dir@^3.2.0":
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/@types/find-cache-dir/-/find-cache-dir-3.2.0.tgz#eaaf331699dccf52c47926e4d4f8f3ed8db33f3c"
+  integrity sha512-+JeT9qb2Jwzw72WdjU+TSvD5O1QRPWCeRpDJV+guiIq+2hwR0DFGw+nZNbTFjMIVe6Bf4GgAKeB/6Ytx6+MbeQ==
+
 "@types/fs-extra@^9.0.10":
   version "9.0.11"
   resolved "https://registry.yarnpkg.com/@types/fs-extra/-/fs-extra-9.0.11.tgz#8cc99e103499eab9f347dbc6ca4e99fb8d2c2b87"
@@ -693,6 +713,14 @@ add-stream@^1.0.0:
   resolved "https://registry.yarnpkg.com/add-stream/-/add-stream-1.0.0.tgz#6a7990437ca736d5e1288db92bd3266d5f5cb2aa"
   integrity sha1-anmQQ3ynNtXhKI25K9MmbV9csqo=
 
+aggregate-error@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/aggregate-error/-/aggregate-error-3.1.0.tgz#92670ff50f5359bdb7a3e0d40d0ec30c5737687a"
+  integrity sha512-4I7Td01quW/RpocfNayFdFVk1qSuoh0E7JrbRJ16nH01HhKFQ88INq9Sd+nd72zqRySlr9BmDA8xlEJ6vJMrYA==
+  dependencies:
+    clean-stack "^2.0.0"
+    indent-string "^4.0.0"
+
 ajv@^8.0.0:
   version "8.2.0"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-8.2.0.tgz#c89d3380a784ce81b2085f48811c4c101df4c602"
@@ -908,6 +936,29 @@ builtin-modules@^3.1.0:
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-3.2.0.tgz#45d5db99e7ee5e6bc4f362e008bf917ab5049887"
   integrity sha512-lGzLKcioL90C7wMczpkY0n/oART3MbBa8R9OFGE1rJxoVI86u4WAGfEk8Wjv10eKSyTHVGkSo3bvBylCEtk7LA==
 
+cacache@^15.0.6:
+  version "15.0.6"
+  resolved "https://registry.yarnpkg.com/cacache/-/cacache-15.0.6.tgz#65a8c580fda15b59150fb76bf3f3a8e45d583099"
+  integrity sha512-g1WYDMct/jzW+JdWEyjaX2zoBkZ6ZT9VpOyp2I/VMtDsNLffNat3kqPFfi1eDRSK9/SuKGyORDHcQMcPF8sQ/w==
+  dependencies:
+    "@npmcli/move-file" "^1.0.1"
+    chownr "^2.0.0"
+    fs-minipass "^2.0.0"
+    glob "^7.1.4"
+    infer-owner "^1.0.4"
+    lru-cache "^6.0.0"
+    minipass "^3.1.1"
+    minipass-collect "^1.0.2"
+    minipass-flush "^1.0.5"
+    minipass-pipeline "^1.2.2"
+    mkdirp "^1.0.3"
+    p-map "^4.0.0"
+    promise-inflight "^1.0.1"
+    rimraf "^3.0.2"
+    ssri "^8.0.1"
+    tar "^6.0.2"
+    unique-filename "^1.1.1"
+
 call-me-maybe@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/call-me-maybe/-/call-me-maybe-1.0.1.tgz#26d208ea89e37b5cbde60250a15f031c16a4d66b"
@@ -1027,6 +1078,16 @@ chokidar@3.5.1, "chokidar@>=3.0.0 <4.0.0", chokidar@^3.0.0, chokidar@^3.5.1:
   optionalDependencies:
     fsevents "~2.3.1"
 
+chownr@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-2.0.0.tgz#15bfbe53d2eab4cf70f18a8cd68ebe5b3cb1dece"
+  integrity sha512-bIomtDF5KGpdogkLd9VspvFzk9KfpyyGlS8YFVZl7TGPBHL5snIOnxeshwVgPteQ9b4Eydl+pVbIyE1DcvCWgQ==
+
+clean-stack@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/clean-stack/-/clean-stack-2.2.0.tgz#ee8472dbb129e727b31e8a10a427dee9dfe4008b"
+  integrity sha512-4diC9HaTE+KRAMWhDhrGOECgWZxoevMc5TlkObMqNSsVU62PYzXZ/SMTjzyGAFF1YusgxGcSWTEXBhp0CPwQ1A==
+
 cli-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/cli-color/-/cli-color-2.0.0.tgz#11ecfb58a79278cf6035a60c54e338f9d837897c"
@@ -1834,6 +1895,15 @@ fill-range@^7.0.1:
   dependencies:
     to-regex-range "^5.0.1"
 
+find-cache-dir@^3.3.1:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-3.3.1.tgz#89b33fad4a4670daa94f855f7fbe31d6d84fe880"
+  integrity sha512-t2GDMt3oGC/v+BMwzmllWDuJF/xcDtE5j/fCGbqDD7OLuJkj0cfh1YSA5VKPvwMeLFLNDBkwOKZ2X85jGLVftQ==
+  dependencies:
+    commondir "^1.0.1"
+    make-dir "^3.0.2"
+    pkg-dir "^4.1.0"
+
 find-parent-dir@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/find-parent-dir/-/find-parent-dir-0.3.0.tgz#33c44b429ab2b2f0646299c5f9f718f376ff8d54"
@@ -1869,7 +1939,7 @@ find-up@^3.0.0:
   dependencies:
     locate-path "^3.0.0"
 
-find-up@^4.1.0:
+find-up@^4.0.0, find-up@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-4.1.0.tgz#97afe7d6cdc0bc5928584b7c8d7b16e8a9aa5d19"
   integrity sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==
@@ -1913,6 +1983,13 @@ fs-extra@^9.0.0:
     jsonfile "^6.0.1"
     universalify "^2.0.0"
 
+fs-minipass@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-2.1.0.tgz#7f5036fdbf12c63c169190cbe4199c852271f9fb"
+  integrity sha512-V/JgOLFCS+R6Vcq0slCuaeWEdNC3ouDlJMNIsacH2VtALiu9mV4LPrHc5cDl8k5aw6J8jwgWWpiTo5RYhmIzvg==
+  dependencies:
+    minipass "^3.0.0"
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
@@ -2019,7 +2096,7 @@ glob-promise@^3.4.0:
   dependencies:
     "@types/glob" "*"
 
-glob@7.1.6, glob@^7.0.0, glob@^7.1.3, glob@^7.1.6:
+glob@7.1.6, glob@^7.0.0, glob@^7.1.3, glob@^7.1.4, glob@^7.1.6:
   version "7.1.6"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
   integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
@@ -2159,6 +2236,11 @@ import-fresh@^3.0.0, import-fresh@^3.2.1:
     parent-module "^1.0.0"
     resolve-from "^4.0.0"
 
+imurmurhash@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
+  integrity sha1-khi5srkoojixPcT7a21XbyMUU+o=
+
 indent-string@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-2.1.0.tgz#8e2d48348742121b4a8218b7a137e9a52049dc80"
@@ -2176,6 +2258,11 @@ indexes-of@^1.0.1:
   resolved "https://registry.yarnpkg.com/indexes-of/-/indexes-of-1.0.1.tgz#f30f716c8e2bd346c7b67d3df3915566a7c05607"
   integrity sha1-8w9xbI4r00bHtn0985FVZqfAVgc=
 
+infer-owner@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/infer-owner/-/infer-owner-1.0.4.tgz#c4cefcaa8e51051c2a40ba2ce8a3d27295af9467"
+  integrity sha512-IClj+Xz94+d7irH5qRyfJonOdfTzuDaifE6ZPWfx0N0+/ATZCbuTPq2prFl526urkQd90WyUKIh1DfBQ2hMz9A==
+
 inflight@^1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
@@ -2635,7 +2722,7 @@ make-dir@^2.1.0:
     pify "^4.0.1"
     semver "^5.6.0"
 
-make-dir@~3.1.0:
+make-dir@^3.0.2, make-dir@~3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-3.1.0.tgz#415e967046b3a7f1d185277d84aa58203726a13f"
   integrity sha512-g3FeP20LNwhALb/6Cz6Dd4F2ngze0jz7tbzrD2wAV+o9FeNHe4rL+yK2md0J/fiSf1sa1ADhXqi5+oVwOM/eGw==
@@ -2755,7 +2842,43 @@ minimist@^1.1.3, minimist@^1.2.0, minimist@^1.2.5:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
   integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
 
-mkdirp@^1.0.4, mkdirp@~1.0.4:
+minipass-collect@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/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.yarnpkg.com/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 "1.2.4"
+  resolved "https://registry.yarnpkg.com/minipass-pipeline/-/minipass-pipeline-1.2.4.tgz#68472f79711c084657c067c5c6ad93cddea8214c"
+  integrity sha512-xuIq7cIOt09RPRJ19gdi4b+RiNvDFYe5JH+ggNvBqGqpQXcru3PcRmOZuHBKWK1Txf9+cQ+HMVN4d6z46LZP7A==
+  dependencies:
+    minipass "^3.0.0"
+
+minipass@^3.0.0, minipass@^3.1.1:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/minipass/-/minipass-3.1.3.tgz#7d42ff1f39635482e15f9cdb53184deebd5815fd"
+  integrity sha512-Mgd2GdMVzY+x3IJ+oHnVM+KG3lA5c8tnabyJKmHSaG2kAGpudxuOf8ToDkhumF7UzME7DecbQE9uOZhNm7PuJg==
+  dependencies:
+    yallist "^4.0.0"
+
+minizlib@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-2.1.2.tgz#e90d3466ba209b932451508a11ce3d3632145931"
+  integrity sha512-bAxsR8BVfj60DWXHE3u30oHzfl4G7khkSuPW+qvpd7jFRHm7dLxOjUk1EHACJ/hxLY8phGJ0YhYHZo7jil7Qdg==
+  dependencies:
+    minipass "^3.0.0"
+    yallist "^4.0.0"
+
+mkdirp@^1.0.3, mkdirp@^1.0.4, mkdirp@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-1.0.4.tgz#3eb5ed62622756d79a5f0e2a221dfebad75c2f7e"
   integrity sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==
@@ -3035,6 +3158,13 @@ p-locate@^5.0.0:
   dependencies:
     p-limit "^3.0.2"
 
+p-map@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/p-map/-/p-map-4.0.0.tgz#bb2f95a5eda2ec168ec9274e06a747c3e2904d2b"
+  integrity sha512-/bjOqmgETBYB5BoEeGVea8dmvHb2m9GLy1E9W43yeyfP6QQCZGFNa+XRceJEuDB6zqr+gKpIAmlLebMpykw/MQ==
+  dependencies:
+    aggregate-error "^3.0.0"
+
 p-try@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
@@ -3189,6 +3319,13 @@ pinkie@^2.0.0:
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
   integrity sha1-clVrgM+g1IqXToDnckjoDtT3+HA=
 
+pkg-dir@^4.1.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-4.2.0.tgz#f099133df7ede422e81d1d8448270eeb3e4261f3"
+  integrity sha512-HRDzbaKjC+AOWVXxAU/x54COGeIv9eb+6CkDSQoNTt4XyWoIJvuPsXizxu/Fr23EiekbtZwmh1IcIG/l/a10GQ==
+  dependencies:
+    find-up "^4.0.0"
+
 postcss-attribute-case-insensitive@^4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/postcss-attribute-case-insensitive/-/postcss-attribute-case-insensitive-4.0.2.tgz#d93e46b504589e94ac7277b0463226c68041a880"
@@ -3752,6 +3889,11 @@ process-nextick-args@~2.0.0:
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.1.tgz#7820d9b16120cc55ca9ae7792680ae7dba6d7fe2"
   integrity sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==
 
+promise-inflight@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/promise-inflight/-/promise-inflight-1.0.1.tgz#98472870bf228132fcbdd868129bad12c3c029e3"
+  integrity sha1-mEcocL8igTL8vdhoEputEsPAKeM=
+
 prr@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
@@ -4189,6 +4331,13 @@ sprintf-js@~1.0.2:
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
   integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
+ssri@^8.0.1:
+  version "8.0.1"
+  resolved "https://registry.yarnpkg.com/ssri/-/ssri-8.0.1.tgz#638e4e439e2ffbd2cd289776d5ca457c4f51a2af"
+  integrity sha512-97qShzy1AiyxvPNIkLWoGua7xoQzzPjQ0HAH4B0rWKo7SZ6USuPcrUiAFrws0UH8RrbWmgq3LMTObhPIHbbBeQ==
+  dependencies:
+    minipass "^3.1.1"
+
 stable@^0.1.8:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/stable/-/stable-0.1.8.tgz#836eb3c8382fe2936feaf544631017ce7d47a3cf"
@@ -4364,6 +4513,18 @@ svgo@^2.3.0:
     csso "^4.2.0"
     stable "^0.1.8"
 
+tar@^6.0.2:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-6.1.0.tgz#d1724e9bcc04b977b18d5c573b333a2207229a83"
+  integrity sha512-DUCttfhsnLCjwoDoFcI+B2iJgYa93vBnDUATYEeRx6sntCTdN01VnqsIuTlALXla/LWooNg0yEGeB+Y8WdFxGA==
+  dependencies:
+    chownr "^2.0.0"
+    fs-minipass "^2.0.0"
+    minipass "^3.0.0"
+    minizlib "^2.1.1"
+    mkdirp "^1.0.3"
+    yallist "^4.0.0"
+
 text-extensions@^1.0.0:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.9.0.tgz#1853e45fee39c945ce6f6c36b2d659b5aabc2a26"
@@ -4520,6 +4681,20 @@ uniqs@^2.0.0:
   resolved "https://registry.yarnpkg.com/uniqs/-/uniqs-2.0.0.tgz#ffede4b36b25290696e6e165d4a59edb998e6b02"
   integrity sha1-/+3ks2slKQaW5uFl1KWe25mOawI=
 
+unique-filename@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/unique-filename/-/unique-filename-1.1.1.tgz#1d69769369ada0583103a1e6ae87681b56573230"
+  integrity sha512-Vmp0jIp2ln35UTXuryvjzkjGdRyf9b2lTXuSYUiPmzRcl3FDtYqAwOnTJkAngD9SWhnoJzDbTKwaOrZ+STtxNQ==
+  dependencies:
+    unique-slug "^2.0.0"
+
+unique-slug@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/unique-slug/-/unique-slug-2.0.2.tgz#baabce91083fc64e945b0f3ad613e264f7cd4e6c"
+  integrity sha512-zoWr9ObaxALD3DOPfjPSqxt4fnZiWblxHIgeWqW8x7UqDzEtHEQLzji2cuJYQFCU6KmoJikOYAZlrTHHebjx2w==
+  dependencies:
+    imurmurhash "^0.1.4"
+
 universalify@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/universalify/-/universalify-2.0.0.tgz#75a4984efedc4b08975c5aeb73f530d02df25717"