diff --git a/package-lock.json b/package-lock.json
index 5567785f3..5cc92ba4b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2960,21 +2960,21 @@
       }
     },
     "clean-css": {
-      "version": "5.1.5",
-      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-5.1.5.tgz",
-      "integrity": "sha512-9dr/cU/LjMpU57PXlSvDkVRh0rPxJBXiBtD0+SgYt8ahTCsXtfKjCkNYgIoTC6mBg8CFr5EKhW3DKCaGMUbUfQ==",
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-5.2.1.tgz",
+      "integrity": "sha512-ooQCa1/70oRfVdUUGjKpbHuxgMgm8BsDT5EBqBGvPxMoRoGXf4PNx5mMnkjzJ9Ptx4vvmDdha0QVh86QtYIk1g==",
       "dev": true,
       "requires": {
         "source-map": "~0.6.0"
       }
     },
     "clean-css-cli": {
-      "version": "5.3.3",
-      "resolved": "https://registry.npmjs.org/clean-css-cli/-/clean-css-cli-5.3.3.tgz",
-      "integrity": "sha512-Reo/w25/3J2uRL4EFHvo92Tv97uhefyHranTpxXNqQ7iIRB8oxRNVlXC+Xcq8RWO2LjSyOofrb7AU6I6oXpPpA==",
+      "version": "5.4.1",
+      "resolved": "https://registry.npmjs.org/clean-css-cli/-/clean-css-cli-5.4.1.tgz",
+      "integrity": "sha512-LQLY8HKQP2d/M0FVbNfpoVbHMHh/ARIET2r80odAKuTN0RUOp8J8pU9eDlqMa1yezuUH3ipQxTVM/+vpunAhnA==",
       "dev": true,
       "requires": {
-        "clean-css": "^5.1.5",
+        "clean-css": "^5.2.1",
         "commander": "7.x",
         "glob": "^7.1.6"
       },
diff --git a/package.json b/package.json
index 74131e353..c13fbcfb9 100644
--- a/package.json
+++ b/package.json
@@ -133,7 +133,7 @@
     "autoprefixer": "^10.3.7",
     "browser-sync": "^2.27.5",
     "bundlewatch": "^0.3.2",
-    "clean-css-cli": "^5.3.3",
+    "clean-css-cli": "^5.4.1",
     "concurrently": "^6.3.0",
     "eslint": "^7.32.0",
     "eslint-config-xo": "^0.39.0",