diff --git a/package-lock.json b/package-lock.json
index e2a08f9..d284b27 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5398,9 +5398,9 @@
       "dev": true
     },
     "main.css": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/main.css/-/main.css-2.1.0.tgz",
-      "integrity": "sha512-nKb/vy0+0Y/OFVzHWooY6hJlZz2aYLy7le+hky9AQJJQGsc5OU8qA451jvemSb3GuPmIcnNZgfx9wKl5zDEqxQ==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/main.css/-/main.css-3.0.0.tgz",
+      "integrity": "sha512-FNPFOwbYXJpENkeI1BHtL4GFJtgBHjbShKjFXX7xmVUxUbkiFVUwhxVeuXG4lHNvsm9FlAEGX52YtTo7CmNwAQ==",
       "dev": true
     },
     "make-iterator": {
diff --git a/package.json b/package.json
index c887139..8949e5a 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "gulp-useref": "^3.1.6",
     "jshint": "^2.13.1",
     "jshint-stylish": "^2.2.1",
-    "main.css": "2.1.0",
+    "main.css": "3.0.0",
     "normalize.css": "^8.0.1",
     "rework-npm": "^1.0.0",
     "run-sequence": "^2.2.1",