diff --git a/package-lock.json b/package-lock.json
index 3ecb7ba..5890d03 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -633,9 +633,9 @@
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     },
     "clean-css": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-5.1.1.tgz",
-      "integrity": "sha512-GQ6HdEyJN0543mRTA/TkZ7RPoMXGWKq1shs9H86F2kLuixR0RI+xd4JfhJxWUW08FGKQXTKAKpVjKQXu5zkFNA==",
+      "version": "5.3.2",
+      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-5.3.2.tgz",
+      "integrity": "sha512-JVJbM+f3d3Q704rF4bqQ5UUyTtuJ0JRKNbTKVEeujCCBoMdkEi+V+e8oktO9qGQNSvHrFTM6JZRXrUvGR1czww==",
       "dev": true,
       "requires": {
         "source-map": "~0.6.0"
diff --git a/package.json b/package.json
index 17c930c..e73ff1c 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "boxen": "^5.0.0",
     "chai": "^4.3.3",
     "chokidar": "^3.5.1",
-    "clean-css": "^5.1.1",
+    "clean-css": "^5.3.2",
     "epipebomb": "^1.0.0",
     "eslint": "^7.21.0",
     "eslint-config-prettier": "^8.1.0",