diff --git a/yarn.lock b/yarn.lock
index bfc37f2..3b52b68 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -226,7 +226,7 @@ babel-eslint@^5.0.0:
 
 babel-generator@6.11.4:
   version "6.11.4"
-  resolved "http://registry.npmjs.org/babel-generator/-/babel-generator-6.11.4.tgz#14f6933abb20c62666d27e3b7b9f5b9dc0712a9a"
+  resolved "https://registry.npmjs.org/babel-generator/-/babel-generator-6.11.4.tgz#14f6933abb20c62666d27e3b7b9f5b9dc0712a9a"
   dependencies:
     babel-messages "^6.8.0"
     babel-runtime "^6.9.0"
@@ -871,8 +871,9 @@ css-select@~1.2.0:
     nth-check "~1.0.1"
 
 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==
 
 cssom@0.3.x, "cssom@>= 0.3.0 < 0.4.0":
   version "0.3.2"