diff --git a/.github/workflows/build-blog-only.yml b/.github/workflows/build-blog-only.yml
index 766f097dba..92c5bbe9e6 100644
--- a/.github/workflows/build-blog-only.yml
+++ b/.github/workflows/build-blog-only.yml
@@ -16,6 +16,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
         with:
+          node-version: '16'
           cache: yarn
       - name: Installation
         run: yarn
diff --git a/.github/workflows/build-perf.yml b/.github/workflows/build-perf.yml
index e1edd0f4ba..55d4b4e9a6 100644
--- a/.github/workflows/build-perf.yml
+++ b/.github/workflows/build-perf.yml
@@ -21,6 +21,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
         with:
+          node-version: '16'
           cache: yarn
       - uses: preactjs/compressed-size-action@v2
         with:
diff --git a/.github/workflows/canary-release.yml b/.github/workflows/canary-release.yml
index 9fabecd023..4e38bb08aa 100644
--- a/.github/workflows/canary-release.yml
+++ b/.github/workflows/canary-release.yml
@@ -11,17 +11,14 @@ jobs:
   publish-canary:
     name: Publish Canary
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: [14.x]
     steps:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0 # Needed to get the commit number with "git rev-list --count HEAD"
-      - name: Use Node.js ${{ matrix.node-version }}
+      - name: Set up Node
         uses: actions/setup-node@v2
         with:
-          node-version: ${{ matrix.node-version }}
+          node-version: '16'
           cache: yarn
       - name: Prepare git
         run: |
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 2e51731b6f..794100c412 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -14,6 +14,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
         with:
+          node-version: '16'
           cache: yarn
       - name: Installation
         run: yarn
diff --git a/.github/workflows/showcase-test.yml b/.github/workflows/showcase-test.yml
index 8513436db9..91fb8a9d5c 100644
--- a/.github/workflows/showcase-test.yml
+++ b/.github/workflows/showcase-test.yml
@@ -17,6 +17,7 @@ jobs:
       - name: Set up Node
         uses: actions/setup-node@v2
         with:
+          node-version: '16'
           cache: yarn
       - name: Installation
         run: yarn
diff --git a/jest.config.mjs b/jest.config.mjs
index a15052fea6..377a0142cf 100644
--- a/jest.config.mjs
+++ b/jest.config.mjs
@@ -31,7 +31,7 @@ export default {
   transform: {
     '^.+\\.[jt]sx?$': 'babel-jest',
   },
-  setupFiles: ['./jest/stylelint-rule-test.js', './jest/polyfills.js'],
+  setupFiles: ['./jest/stylelint-rule-test.js'],
   moduleNameMapper: {
     // Jest can't resolve CSS or asset imports
     '^.+\\.(css|jpg|jpeg|png|svg)$': '<rootDir>/jest/emptyModule.js',
diff --git a/jest/polyfills.js b/jest/polyfills.js
deleted file mode 100644
index 951678076e..0000000000
--- a/jest/polyfills.js
+++ /dev/null
@@ -1,19 +0,0 @@
-/**
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-/* eslint-disable import/no-extraneous-dependencies */
-require('@formatjs/intl-pluralrules/polyfill');
-require('@formatjs/intl-pluralrules/locale-data/en');
-require('@formatjs/intl-pluralrules/locale-data/fr');
-
-require('@formatjs/intl-numberformat/polyfill');
-require('@formatjs/intl-numberformat/locale-data/en');
-require('@formatjs/intl-numberformat/locale-data/fr');
-
-require('@formatjs/intl-datetimeformat/polyfill');
-require('@formatjs/intl-datetimeformat/add-all-tz');
-require('@formatjs/intl-datetimeformat/locale-data/en');
-require('@formatjs/intl-datetimeformat/locale-data/fr');
diff --git a/package.json b/package.json
index 347dccc3c7..b69b4fad9f 100644
--- a/package.json
+++ b/package.json
@@ -65,9 +65,6 @@
     "@babel/plugin-transform-modules-commonjs": "^7.16.0",
     "@babel/preset-typescript": "^7.16.0",
     "@crowdin/cli": "^3.7.1",
-    "@formatjs/intl-datetimeformat": "^3.2.12",
-    "@formatjs/intl-numberformat": "^6.2.2",
-    "@formatjs/intl-pluralrules": "^4.0.11",
     "@types/cssnano": "^4.0.0",
     "@types/express": "^4.17.2",
     "@types/fs-extra": "^9.0.6",
diff --git a/yarn.lock b/yarn.lock
index e4621e8c9e..44e1e41ee3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1466,53 +1466,6 @@
     unique-filename "^1.1.1"
     which "^1.3.1"
 
-"@formatjs/ecma402-abstract@1.11.1":
-  version "1.11.1"
-  resolved "https://registry.yarnpkg.com/@formatjs/ecma402-abstract/-/ecma402-abstract-1.11.1.tgz#595ba3ef4ba38634c012b3ca01954f8d12eb4bf4"
-  integrity sha512-tgtNODZUGuUI6PAcnvaLZpGrZLVkXnnAvgzOiueYMzFdOdcOw4iH1WKhCe3+r6VR8rHKToJ2HksUGNCB+zt/bg==
-  dependencies:
-    "@formatjs/intl-localematcher" "0.2.22"
-    tslib "^2.1.0"
-
-"@formatjs/ecma402-abstract@1.7.1":
-  version "1.7.1"
-  resolved "https://registry.yarnpkg.com/@formatjs/ecma402-abstract/-/ecma402-abstract-1.7.1.tgz#1459a9dad654d5d5ec34765965b8e4f22ad6ff81"
-  integrity sha512-FjewVLB2DVEVCvvC7IMffzXVhysvi442i6ed0H7qcrT6xtUpO4vr0oZgpOmsv6D9I4Io0GVebIuySwteS/k3gg==
-  dependencies:
-    tslib "^2.1.0"
-
-"@formatjs/intl-datetimeformat@^3.2.12":
-  version "3.3.5"
-  resolved "https://registry.yarnpkg.com/@formatjs/intl-datetimeformat/-/intl-datetimeformat-3.3.5.tgz#c812452bfddda88efa1ff554dc80f24abdbcbab6"
-  integrity sha512-JbjkS2OHSyrNgHBiELmaywZ9Yy03HwRj69adWrc9N6baAl/sN6INtyxU+uv3MhTjOEyMtw5FrFO5Juk9VY5o5A==
-  dependencies:
-    "@formatjs/ecma402-abstract" "1.7.1"
-    tslib "^2.1.0"
-
-"@formatjs/intl-localematcher@0.2.22":
-  version "0.2.22"
-  resolved "https://registry.yarnpkg.com/@formatjs/intl-localematcher/-/intl-localematcher-0.2.22.tgz#300708cf7067dbd49f258467cc386c0b32437415"
-  integrity sha512-z+TvbHW8Q/g2l7/PnfUl0mV9gWxV4d0HT6GQyzkO5QI6QjCvCZGiztnmLX7zoyS16uSMvZ2PoMDfSK9xvZkRRA==
-  dependencies:
-    tslib "^2.1.0"
-
-"@formatjs/intl-numberformat@^6.2.2":
-  version "6.2.10"
-  resolved "https://registry.yarnpkg.com/@formatjs/intl-numberformat/-/intl-numberformat-6.2.10.tgz#6180bbcbec5c694258241f3f8fe8b0fb02ce4045"
-  integrity sha512-b2pN56nxQ2JnYaT1ji8NYJbDv9rQmQ1BWHgyRJWIjKz6afYeeoVf/O7YIaDFawNOONgRrn5J1SFYtNdQzXJJkg==
-  dependencies:
-    "@formatjs/ecma402-abstract" "1.7.1"
-    tslib "^2.1.0"
-
-"@formatjs/intl-pluralrules@^4.0.11":
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/@formatjs/intl-pluralrules/-/intl-pluralrules-4.3.0.tgz#5739cd5192206a3567b38eca4569fc6025e729bc"
-  integrity sha512-SuTsUoQfAw9BIvAGm/5UWY0+ORCHhDHIb+tHttxB14sfNvKBiWqtOwQLs49YFwCvMXbUdlLh6HtxNXHWT4V9/w==
-  dependencies:
-    "@formatjs/ecma402-abstract" "1.11.1"
-    "@formatjs/intl-localematcher" "0.2.22"
-    tslib "^2.1.0"
-
 "@hapi/hoek@^9.0.0":
   version "9.2.1"
   resolved "https://registry.yarnpkg.com/@hapi/hoek/-/hoek-9.2.1.tgz#9551142a1980503752536b5050fd99f4a7f13b17"