diff --git a/build-system/tasks/performance/package-lock.json b/build-system/tasks/performance/package-lock.json
index 8f20ad8924742..0f9177599f681 100644
--- a/build-system/tasks/performance/package-lock.json
+++ b/build-system/tasks/performance/package-lock.json
@@ -58,9 +58,9 @@
       }
     },
     "anymatch": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.1.tgz",
-      "integrity": "sha512-mM8522psRCqzV+6LhomX5wgp25YVibjh8Wj23I5RPkPppSVSjyKD2A2mBJmWGa+KN7f2D6LNh9jkBCeyLktzjg==",
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.2.tgz",
+      "integrity": "sha512-P43ePfOAIupkguHUycrc4qJ9kz8ZiuOUijaETwX7THt0Y/GNK7v0aa8rY816xWjZ7rJdA5XdMcpVFTKMq+RvWg==",
       "dev": true,
       "requires": {
         "normalize-path": "^3.0.0",
@@ -170,9 +170,9 @@
       }
     },
     "chalk": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
-      "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.1.tgz",
+      "integrity": "sha512-diHzdDKxcU+bAsUboHLPEDQiw0qEe0qd7SYUn3HgcFlWgbDcfLGswOHYeGrHKzG9z6UYf01d9VFMfZxPM1xZSg==",
       "dev": true,
       "requires": {
         "ansi-styles": "^4.1.0",
@@ -605,9 +605,9 @@
       "dev": true
     },
     "mocha": {
-      "version": "8.3.2",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-8.3.2.tgz",
-      "integrity": "sha512-UdmISwr/5w+uXLPKspgoV7/RXZwKRTiTjJ2/AC5ZiEztIoOYdfKb19+9jNmEInzx5pBsCyJQzarAxqIGBNYJhg==",
+      "version": "8.4.0",
+      "resolved": "https://registry.npmjs.org/mocha/-/mocha-8.4.0.tgz",
+      "integrity": "sha512-hJaO0mwDXmZS4ghXsvPVriOhsxQ7ofcpQdm8dE+jISUOKopitvnXFQmpRR7jd2K6VBG6E26gU3IAbXXGIbu4sQ==",
       "dev": true,
       "requires": {
         "@ungap/promise-all-settled": "1.1.2",
@@ -719,9 +719,9 @@
       "dev": true
     },
     "picomatch": {
-      "version": "2.2.2",
-      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.2.2.tgz",
-      "integrity": "sha512-q0M/9eZHzmr0AulXyPwNfZjtwZ/RBZlbN3K3CErVrk50T2ASYI7Bye0EvekFY3IP1Nt2DHu0re+V2ZHIpMkuWg==",
+      "version": "2.2.3",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.2.3.tgz",
+      "integrity": "sha512-KpELjfwcCDUb9PeigTs2mBJzXUPzAuP2oPcA989He8Rte0+YUAjw1JVedDhuTKPkHjSYzMN3npC9luThGYEKdg==",
       "dev": true
     },
     "pkg-dir": {
@@ -1060,9 +1060,9 @@
       "dev": true
     },
     "y18n": {
-      "version": "5.0.5",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.5.tgz",
-      "integrity": "sha512-hsRUr4FFrvhhRH12wOdfs38Gy7k2FFzB9qgN9v3aLykRq0dRcdcpz5C9FxdS2NuhOrI/628b/KSTJ3rwHysYSg==",
+      "version": "5.0.8",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
+      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==",
       "dev": true
     },
     "yargs": {
diff --git a/build-system/tasks/performance/package.json b/build-system/tasks/performance/package.json
index 01258534cfd94..51735906add9e 100644
--- a/build-system/tasks/performance/package.json
+++ b/build-system/tasks/performance/package.json
@@ -5,7 +5,7 @@
   "description": "Dev dependencies used by `amp performance`",
   "devDependencies": {
     "chai": "4.3.4",
-    "mocha": "8.3.2",
+    "mocha": "8.4.0",
     "puppeteer": "9.1.1"
   }
 }
diff --git a/build-system/tasks/storybook/package-lock.json b/build-system/tasks/storybook/package-lock.json
index 1d9c3322a78a1..882c14dbfdc9a 100644
--- a/build-system/tasks/storybook/package-lock.json
+++ b/build-system/tasks/storybook/package-lock.json
@@ -4645,9 +4645,9 @@
       }
     },
     "core-js": {
-      "version": "3.11.2",
-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.11.2.tgz",
-      "integrity": "sha512-3tfrrO1JpJSYGKnd9LKTBPqgUES/UYiCzMKeqwR1+jF16q4kD1BY2NvqkfuzXwQ6+CIWm55V9cjD7PQd+hijdw==",
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.12.0.tgz",
+      "integrity": "sha512-SaMnchL//WwU2Ot1hhkPflE8gzo7uq1FGvUJ8GKmi3TOU7rGTHIU+eir1WGf6qOtTyxdfdcp10yPdGZ59sQ3hw==",
       "dev": true
     },
     "core-js-compat": {
diff --git a/build-system/tasks/storybook/package.json b/build-system/tasks/storybook/package.json
index cf7cc03b0c581..3a66028b2b2e8 100644
--- a/build-system/tasks/storybook/package.json
+++ b/build-system/tasks/storybook/package.json
@@ -13,7 +13,7 @@
     "@storybook/addon-viewport": "6.2.9",
     "@storybook/preact": "6.2.9",
     "babel-loader": "8.2.2",
-    "core-js": "3.11.2",
+    "core-js": "3.12.0",
     "preact": "10.5.13",
     "preact-render-to-string": "5.1.19",
     "styled-jsx": "3.4.4"