diff --git a/package-lock.json b/package-lock.json
index 5e3946d..58b655c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1225,9 +1225,9 @@
       "optional": true
     },
     "css-what": {
-      "version": "2.1.0",
-      "resolved": "http://registry.npmjs.org/css-what/-/css-what-2.1.0.tgz",
-      "integrity": "sha1-lGfQMsOM+u+58teVASUwYvh/ob0=",
+      "version": "2.1.3",
+      "resolved": "http://registry.npmjs.org/css-what/-/css-what-2.1.3.tgz",
+      "integrity": "sha512-a+EPoD+uZiNfh+5fxw2nO9QwFa6nJe2Or35fGY6Ipw1R3R4AGz1d1TEZrCegvw2YTmZ0jXirGYlzxxpYSHwpEg==",
       "optional": true
     },
     "cssnano": {