chore(package): update dependencies

Author: greenkeeper[bot]

package.json

@@ -66,7 +66,7 @@
     "html-webpack-plugin": "^3.2.0",
     "jest": "^24.0.0",
     "jest-styled-components": "^6.3.1",
-    "prettier": "1.16.2",
+    "prettier": "1.16.4",
     "react-test-renderer": "^16.7.0",
     "redux-mock-store": "^1.5.3",
     "storybook-addon-styled-component-theme": "^1.1.1",