diff --git a/package-lock.json b/package-lock.json
index 56d1db30a462..d296873316d7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2704,9 +2704,9 @@
       }
     },
     "clean-css": {
-      "version": "4.2.3",
-      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-4.2.3.tgz",
-      "integrity": "sha512-VcMWDN54ZN/DS+g58HYL5/n4Zrqe8vHJpGA8KdgUXFU4fuP/aHNw8eld9SyEIyabIMJX/0RaY/fplOo5hYLSFA==",
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-5.2.2.tgz",
+      "integrity": "sha512-/eR8ru5zyxKzpBLv9YZvMXgTSSQn7AdkMItMYynsFgGwTveCRVam9IUPFloE85B4vAIj05IuKmmEoV7/AQjT0w==",
       "dev": true,
       "requires": {
         "source-map": "~0.6.0"
@@ -2721,20 +2721,20 @@
       }
     },
     "clean-css-cli": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/clean-css-cli/-/clean-css-cli-4.3.0.tgz",
-      "integrity": "sha512-8GHZfr+mG3zB/Lgqrr27qHBFsPSn0fyEI3f2rIZpxPxUbn2J6A8xyyeBRVTW8duDuXigN0s80vsXiXJOEFIO5Q==",
+      "version": "5.4.2",
+      "resolved": "https://registry.npmjs.org/clean-css-cli/-/clean-css-cli-5.4.2.tgz",
+      "integrity": "sha512-BYxVOuBQL8f2+yucOgmwUi1idpAQV4k9bxG6mxTrBikuwrkXBG5/Pq6tqCi4GZUtgvslMj8dGVtFSoXp9OLzeA==",
       "dev": true,
       "requires": {
-        "clean-css": "^4.2.1",
-        "commander": "2.x",
-        "glob": "7.x"
+        "clean-css": "^5.2.2",
+        "commander": "7.x",
+        "glob": "^7.1.6"
       },
       "dependencies": {
         "commander": {
-          "version": "2.20.3",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
-          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-7.2.0.tgz",
+          "integrity": "sha512-QrWXB+ZQSVPmIWIhtEO9H+gwHaMGYiF5ChvoJ+K9ZGHG/sVsa6yiesAD1GC/x46sET00Xlwo1u49RVVVzvcSkw==",
           "dev": true
         }
       }
diff --git a/package.json b/package.json
index 9093ead10774..84bdba033142 100644
--- a/package.json
+++ b/package.json
@@ -100,7 +100,7 @@
     "@rollup/plugin-node-resolve": "^9.0.0",
     "autoprefixer": "^9.8.6",
     "bundlewatch": "^0.3.0",
-    "clean-css-cli": "^4.3.0",
+    "clean-css-cli": "^5.4.2",
     "cross-env": "^7.0.2",
     "eslint": "^7.9.0",
     "eslint-config-xo": "^0.32.1",