diff --git a/yarn.lock b/yarn.lock
index 1d81dd9..e5de794 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -78,7 +78,7 @@
 
 "@types/node@^8.0.24":
   version "8.9.5"
-  resolved "http://registry.npmjs.org/@types/node/-/node-8.9.5.tgz#162b864bc70be077e6db212b322754917929e976"
+  resolved "https://registry.npmjs.org/@types/node/-/node-8.9.5.tgz#162b864bc70be077e6db212b322754917929e976"
 
 "@types/react-dom@16.0.3":
   version "16.0.3"
@@ -1443,8 +1443,8 @@ css-value@~0.0.1:
   resolved "https://registry.yarnpkg.com/css-value/-/css-value-0.0.1.tgz#5efd6c2eea5ea1fd6b6ac57ec0427b18452424ea"
 
 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"
 
 css@^2.0.0:
   version "2.2.1"