diff --git a/package-lock.json b/package-lock.json
index 26830c520ba..7b4b1579b3a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1723,12 +1723,6 @@
             "nth-check": "~1.0.1"
           }
         },
-        "css-what": {
-          "version": "2.1.0",
-          "resolved": "https://registry.npmjs.org/css-what/-/css-what-2.1.0.tgz",
-          "integrity": "sha1-lGfQMsOM+u+58teVASUwYvh/ob0=",
-          "dev": true
-        },
         "domutils": {
           "version": "1.5.1",
           "resolved": "https://registry.npmjs.org/domutils/-/domutils-1.5.1.tgz",