fix(package): update enzyme to version 3.5.1

Closes #35

Author: greenkeeper[bot]

package.json

@@ -19,7 +19,7 @@
   "license": "ISC",
   "dependencies": {
     "body-parser": "^1.18.2",
-    "enzyme": "^3.3.0",
+    "enzyme": "^3.5.1",
     "enzyme-adapter-react-16": "^1.1.1",
     "express": "^4.16.2",
     "node-sass": "^4.7.2",