Upgrade prop-types package

package.json

@@ -71,7 +71,7 @@
     "postcss-mixins": "6.2.1",
     "postcss-nested": "4.1.2",
     "postcss-simple-vars": "5.0.2",
-    "prop-types": "15.6.2",
+    "prop-types": "15.7.2",
     "qs": "6.6.0",
     "react": "16.8.3",
     "react-addons-shallow-compare": "15.6.2",
@@ -89,8 +89,8 @@
     "react-router-dom": "4.3.1",
     "react-router-redux": "5.0.0-alpha.6",
     "react-slider": "0.11.2",
-    "react-tether": "1.0.1",
     "react-tabs": "3.0.0",
+    "react-tether": "1.0.1",
     "react-text-truncate": "0.14.0",
     "react-virtualized": "9.21.0",
     "redux": "4.0.0",

yarn.lock

@@ -6770,15 +6770,7 @@ promise@^7.1.1:
   dependencies:
     asap "~2.0.3"
 
-prop-types@15.6.2:
+prop-types@15.7.2, prop-types@^15.5.0, prop-types@^15.5.10, prop-types@^15.5.4, prop-types@^15.5.6, prop-types@^15.5.7, prop-types@^15.5.8, prop-types@^15.6.0, prop-types@^15.6.1, prop-types@^15.6.2:
-  version "15.6.2"
-  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.2.tgz#05d5ca77b4453e985d60fc7ff8c859094a497102"
-  integrity sha512-3pboPvLiWD7dkI3qf3KbUe6hKFKa52w+AE0VCqECtf+QHAKgOL37tTaNCnuX1nAAQ4ZhyP+kYVKf8rLmJ/feDQ==
-  dependencies:
-    loose-envify "^1.3.1"
-    object-assign "^4.1.1"
-
-prop-types@^15.5.0, prop-types@^15.5.10, prop-types@^15.5.4, prop-types@^15.5.6, prop-types@^15.5.7, prop-types@^15.5.8, prop-types@^15.6.0, prop-types@^15.6.1, prop-types@^15.6.2:
   version "15.7.2"
   resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.7.2.tgz#52c41e75b8c87e72b9d9360e0206b99dcbffa6c5"
   integrity sha512-8QQikdH7//R2vurIJSutZ1smHYTcLpRWEOlHnzcWHmBYrOGUysKwSsrC89BCiFj3CbrfJ/nXFdJepOVrY1GCHQ==