diff --git a/yarn.lock b/yarn.lock
index 4d9c45f..cb73f05 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1849,8 +1849,9 @@ css-selector-extract@^3.3.6:
     postcss "^6.0.14"
 
 css-what@2.1:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.0.tgz#9467d032c38cfaefb9f2d79501253062f87fa1bd"
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.3.tgz#a6d7604573365fe74686c3f311c56513d88285f2"
+  integrity sha512-a+EPoD+uZiNfh+5fxw2nO9QwFa6nJe2Or35fGY6Ipw1R3R4AGz1d1TEZrCegvw2YTmZ0jXirGYlzxxpYSHwpEg==
 
 css@2.X, css@^2.2.1:
   version "2.2.1"