fix: Upgrade Babel

Author: okonet

package.json

@@ -60,11 +60,11 @@
     "react-dom": "^0.14.0 || ^15.0.0"
   },
   "devDependencies": {
-    "babel": "^6.5.2",
-    "babel-cli": "^6.6.5",
-    "babel-preset-es2015": "^6.6.0",
-    "babel-preset-react": "^6.5.0",
-    "babel-preset-stage-1": "^6.5.0",
+    "babel": "^6.23.0",
+    "babel-cli": "^6.23.0",
+    "babel-preset-es2015": "^6.22.0",
+    "babel-preset-react": "^6.23.0",
+    "babel-preset-stage-1": "^6.22.0",
     "chai": "^3.5.0",
     "chai-enzyme": "^0.6.1",
     "enzyme": "^2.7.1",