chore(package): update lockfile

https://npm.im/greenkeeper-lockfile

Author: greenkeeperio-bot

yarn.lock

@@ -3462,7 +3462,7 @@ promise@^7.1.1:
   dependencies:
     asap "~2.0.3"
 
-prop-types@^15.5.10, prop-types@^15.5.4, prop-types@^15.5.7, prop-types@^15.5.8, prop-types@~15.5.7:
+prop-types@^15.5.10, prop-types@^15.5.4, prop-types@^15.5.7, prop-types@^15.5.8:
   version "15.5.10"
   resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.5.10.tgz#2797dfc3126182e3a95e3dfbb2e893ddd7456154"
   dependencies:
@@ -3636,14 +3636,14 @@ react-cosmos@^2.0.0-beta.14:
     react-cosmos-utils "^2.0.0-beta.11"
     react-querystring-router "^2.0.0-beta.13"
 
-react-dom@15.5.4:
-  version "15.5.4"
-  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-15.5.4.tgz#ba0c28786fd52ed7e4f2135fe0288d462aef93da"
+react-dom@15.6.1:
+  version "15.6.1"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-15.6.1.tgz#2cb0ed4191038e53c209eb3a79a23e2a4cf99470"
   dependencies:
     fbjs "^0.8.9"
     loose-envify "^1.1.0"
     object-assign "^4.1.0"
-    prop-types "~15.5.7"
+    prop-types "^15.5.10"
 
 react-querystring-router@^2.0.0-beta.13:
   version "2.0.0-beta.13"