diff --git a/package-lock.json b/package-lock.json
index add832d57d..4883173720 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2534,9 +2534,9 @@
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     },
     "@mdn/browser-compat-data": {
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-      "resolved": "https://registry.npmjs.org/@mdn/browser-compat-data/-/browser-compat-data-3.1.2.tgz",
-      "integrity": "sha512-lHiIij1SWanbzEPCuMj85O/af85zWdlqZ1Ik+qtTIhZSPLvJPvVoGyCrwEc9q3RELccty+FgYgkh4D56ujRysg==",
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/@mdn/browser-compat-data/-/browser-compat-data-3.1.3.tgz",
+      "integrity": "sha512-Qdqeox4APsYwAQQSO68D1p75DL9an1wS8b/51m+nH98unN4jbS5bvg22WQrg+TMq2/3Mg/E5zprqfUzJD84qgw==",
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       }
@@ -2892,12 +2892,12 @@
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     },
     "addons-linter": {
-      "version": "2.20.0",
-      "resolved": "https://registry.npmjs.org/addons-linter/-/addons-linter-2.20.0.tgz",
-      "integrity": "sha512-Qc+ZXq7O0yov24gn0RSLbX5Y8WX/oaI7N3ytibmTJhIONdISHgLC25Ni6c6hx21tfViw/WqGMFVTsqOx7KodOQ==",
+      "version": "2.21.0",
+      "resolved": "https://registry.npmjs.org/addons-linter/-/addons-linter-2.21.0.tgz",
+      "integrity": "sha512-1XfqeVbvaEpjRlWJq/Ti0W6bH3RszaIDPeKl+4ZmXCx+C8ovRqy4CJmitqNffLr+2KpY4h5ei2eRygbvJYDyrw==",
       "requires": {
-        "@babel/runtime": "7.12.18",
-        "@mdn/browser-compat-data": "3.1.2",
+        "@babel/runtime": "7.13.9",
+        "@mdn/browser-compat-data": "3.1.3",
         "addons-scanner-utils": "4.2.0",
         "ajv": "6.12.6",
         "ajv-merge-patch": "4.1.0",
@@ -2919,7 +2919,7 @@
         "jed": "1.1.1",
         "os-locale": "5.0.0",
         "pino": "6.11.1",
-        "postcss": "8.2.6",
+        "postcss": "8.2.7",
         "probe-image-size": "6.0.0",
         "relaxed-json": "1.0.3",
         "semver": "7.3.4",
@@ -2928,16 +2928,6 @@
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         "yargs": "16.2.0",
         "yauzl": "2.10.0"
-      },
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-        "@babel/runtime": {
-          "version": "7.12.18",
-          "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.12.18.tgz",
-          "integrity": "sha512-BogPQ7ciE6SYAUPtlm9tWbgI9+2AgqSam6QivMgXgAT+fKbgppaj4ZX15MHeLC1PVF5sNk70huBu20XxWOs8Cg==",
-          "requires": {
-            "regenerator-runtime": "^0.13.4"
-          }
-        }
       }
     },
     "addons-scanner-utils": {
@@ -3934,7 +3924,8 @@
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       "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.1.tgz",
-      "integrity": "sha512-puCDz0CzydiSYOrnXpz/PKd69zRrribezjtE9yd4zvytoRc8+RY/KJPvtPFKZS3E3wP6neGyMe0vOTlHO5L3Pw=="
+      "integrity": "sha512-puCDz0CzydiSYOrnXpz/PKd69zRrribezjtE9yd4zvytoRc8+RY/KJPvtPFKZS3E3wP6neGyMe0vOTlHO5L3Pw==",
+      "dev": true
     },
     "colors": {
       "version": "1.4.0",
@@ -5652,9 +5643,9 @@
       "dev": true
     },
     "htmlparser2": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-6.0.0.tgz",
-      "integrity": "sha512-numTQtDZMoh78zJpaNdJ9MXb2cv5G3jwUoe3dMQODubZvLoGvTE/Ofp6sHvH8OGKcN/8A47pGLi/k58xHP/Tfw==",
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-6.0.1.tgz",
+      "integrity": "sha512-GDKPd+vk4jvSuvCbyuzx/unmXkk090Azec7LovXP8as1Hn8q9p3hbjmDGbUqqhknw0ajwit6LiiWqfiTUPMK7w==",
       "requires": {
         "domelementtype": "^2.0.1",
         "domhandler": "^4.0.0",
@@ -7736,13 +7727,20 @@
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     "postcss": {
-      "version": "8.2.6",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.6.tgz",
-      "integrity": "sha512-xpB8qYxgPuly166AGlpRjUdEYtmOWx2iCwGmrv4vqZL9YPVviDVPZPRXxnXr6xPZOdxQ9lp3ZBFCRgWJ7LE3Sg==",
+      "version": "8.2.7",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.7.tgz",
+      "integrity": "sha512-DsVLH3xJzut+VT+rYr0mtvOtpTjSyqDwPf5EZWXcb0uAKfitGpTY9Ec+afi2+TgdN8rWS9Cs88UDYehKo/RvOw==",
       "requires": {
-        "colorette": "^1.2.1",
+        "colorette": "^1.2.2",
         "nanoid": "^3.1.20",
         "source-map": "^0.6.1"
+      },
+      "dependencies": {
+        "colorette": {
+          "version": "1.2.2",
+          "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
+          "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w=="
+        }
       }
     },
     "prelude-ls": {
diff --git a/package.json b/package.json
index 77c40c316c..7c2ea2eb74 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
   "dependencies": {
     "@babel/runtime": "7.13.9",
     "@devicefarmer/adbkit": "2.11.3",
-    "addons-linter": "2.20.0",
+    "addons-linter": "2.21.0",
     "bunyan": "1.8.15",
     "camelcase": "6.2.0",
     "chrome-launcher": "0.13.4",