diff --git a/package-lock.json b/package-lock.json
index 38925fd454400..d809872b558f0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3852,6 +3852,21 @@
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 					"dev": true
 				},
+				"autoprefixer": {
+					"version": "9.8.8",
+					"resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.8.8.tgz",
+					"integrity": "sha512-eM9d/swFopRt5gdJ7jrpCwgvEMIayITpojhkkSMRsFHYuH5bkSQ4p/9qTEHtmNudUZh22Tehu7I6CxAW0IXTKA==",
+					"dev": true,
+					"requires": {
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+						"caniuse-lite": "^1.0.30001109",
+						"normalize-range": "^0.1.2",
+						"num2fraction": "^1.2.2",
+						"picocolors": "^0.2.1",
+						"postcss": "^7.0.32",
+						"postcss-value-parser": "^4.1.0"
+					}
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 				"babel-plugin-polyfill-corejs3": {
 					"version": "0.1.7",
 					"resolved": "https://registry.npmjs.org/babel-plugin-polyfill-corejs3/-/babel-plugin-polyfill-corejs3-0.1.7.tgz",
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+			"resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-10.4.7.tgz",
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 			"requires": {
-				"browserslist": "^4.12.0",
-				"caniuse-lite": "^1.0.30001109",
+				"browserslist": "^4.20.3",
+				"caniuse-lite": "^1.0.30001335",
+				"fraction.js": "^4.2.0",
 				"normalize-range": "^0.1.2",
-				"num2fraction": "^1.2.2",
-				"picocolors": "^0.2.1",
-				"postcss": "^7.0.32",
-				"postcss-value-parser": "^4.1.0"
+				"picocolors": "^1.0.0",
+				"postcss-value-parser": "^4.2.0"
 			},
 			"dependencies": {
-				"postcss": {
-					"version": "7.0.39",
-					"resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.39.tgz",
-					"integrity": "sha512-yioayjNbHn6z1/Bywyb2Y4s3yvDAeXGOyxqD+LnVOinq6Mdmd++SW2wUNVzavyyHxd6+DxzWGIuosg6P1Rj8uA==",
+				"browserslist": {
+					"version": "4.20.3",
+					"resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.20.3.tgz",
+					"integrity": "sha512-NBhymBQl1zM0Y5dQT/O+xiLP9/rzOIQdKM/eMJBAq7yBgaB6krIYLGejrwVYnSHZdqjscB1SPuAjHwxjvN6Wdg==",
+					"dev": true,
 					"requires": {
-						"picocolors": "^0.2.1",
-						"source-map": "^0.6.1"
+						"caniuse-lite": "^1.0.30001332",
+						"electron-to-chromium": "^1.4.118",
+						"escalade": "^3.1.1",
+						"node-releases": "^2.0.3",
+						"picocolors": "^1.0.0"
 					}
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-				"source-map": {
-					"version": "0.6.1",
-					"resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
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+				"caniuse-lite": {
+					"version": "1.0.30001343",
+					"resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001343.tgz",
+					"integrity": "sha512-8KeCrAtPMabo/XW14B+R9sZYoClx1n0b+WYgwDKZPtWR3TcdvWzdSy7mPyFEmR5WU1St9v1PW6sdO5dkFOEzfA==",
+					"dev": true
+				},
+				"electron-to-chromium": {
+					"version": "1.4.140",
+					"resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.4.140.tgz",
+					"integrity": "sha512-NLz5va823QfJBYOO/hLV4AfU4Crmkl/6Hl2pH3qdJcmi0ySZ3YTWHxOlDm3uJOFBEPy3pIhu8gKQo6prQTWKKA==",
+					"dev": true
+				},
+				"node-releases": {
+					"version": "2.0.5",
+					"resolved": "https://registry.npmjs.org/node-releases/-/node-releases-2.0.5.tgz",
+					"integrity": "sha512-U9h1NLROZTq9uE1SNffn6WuPDg8icmi3ns4rEl/oTfIle4iLjTliCzgTsbaIFMq/Xn078/lfY/BL0GWZ+psK4Q==",
+					"dev": true
+				},
+				"picocolors": {
+					"version": "1.0.0",
+					"resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
+					"integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
+					"dev": true
+				},
+				"postcss-value-parser": {
+					"version": "4.2.0",
+					"resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz",
+					"integrity": "sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==",
+					"dev": true
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 		},
@@ -14051,6 +14095,12 @@
 			"resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
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 		},
+		"fraction.js": {
+			"version": "4.2.0",
+			"resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.2.0.tgz",
+			"integrity": "sha512-MhLuK+2gUcnZe8ZHlaaINnQLl0xRIGRfcGk2yl8xoQAfHrSsL3rYu6FCmBdkdbhc9EPlwyGHewaRsvwRMJtAlA==",
+			"dev": true
+		},
 		"fragment-cache": {
 			"version": "0.2.1",
 			"resolved": "https://registry.npmjs.org/fragment-cache/-/fragment-cache-0.2.1.tgz",
@@ -17810,6 +17860,20 @@
 				"postcss": "^7.0.16"
 			},
 			"dependencies": {
+				"autoprefixer": {
+					"version": "9.8.8",
+					"resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.8.8.tgz",
+					"integrity": "sha512-eM9d/swFopRt5gdJ7jrpCwgvEMIayITpojhkkSMRsFHYuH5bkSQ4p/9qTEHtmNudUZh22Tehu7I6CxAW0IXTKA==",
+					"requires": {
+						"browserslist": "^4.12.0",
+						"caniuse-lite": "^1.0.30001109",
+						"normalize-range": "^0.1.2",
+						"num2fraction": "^1.2.2",
+						"picocolors": "^0.2.1",
+						"postcss": "^7.0.32",
+						"postcss-value-parser": "^4.1.0"
+					}
+				},
 				"postcss": {
 					"version": "7.0.39",
 					"resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.39.tgz",
@@ -25593,6 +25657,21 @@
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 					"dev": true
 				},
+				"autoprefixer": {
+					"version": "9.8.8",
+					"resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.8.8.tgz",
+					"integrity": "sha512-eM9d/swFopRt5gdJ7jrpCwgvEMIayITpojhkkSMRsFHYuH5bkSQ4p/9qTEHtmNudUZh22Tehu7I6CxAW0IXTKA==",
+					"dev": true,
+					"requires": {
+						"browserslist": "^4.12.0",
+						"caniuse-lite": "^1.0.30001109",
+						"normalize-range": "^0.1.2",
+						"num2fraction": "^1.2.2",
+						"picocolors": "^0.2.1",
+						"postcss": "^7.0.32",
+						"postcss-value-parser": "^4.1.0"
+					}
+				},
 				"balanced-match": {
 					"version": "2.0.0",
 					"resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-2.0.0.tgz",
diff --git a/package.json b/package.json
index 6cc6b3680caeb..a80474b5935fa 100644
--- a/package.json
+++ b/package.json
@@ -107,7 +107,7 @@
 		"@types/xmldom": "^0.1.30",
 		"@typescript-eslint/eslint-plugin": "^2.34.0",
 		"@typescript-eslint/parser": "^3.0.0",
-		"autoprefixer": "^9.8.6",
+		"autoprefixer": "^10.4.7",
 		"babel-eslint": "^10.1.0",
 		"babel-loader": "^8.2.2",
 		"babel-mocha-es6-compiler": "^0.1.0",