dependencies update

package.json

@@ -20,8 +20,8 @@
     "javascript-obfuscator": "./bin/javascript-obfuscator.js"
   },
   "dependencies": {
-    "babel-polyfill": "6.20.0",
-    "babel-runtime": "6.20.0",
+    "babel-polyfill": "6.22.0",
+    "babel-runtime": "6.22.0",
     "chance": "1.0.4",
     "class-validator": "0.6.8",
     "commander": "2.9.0",
@@ -52,10 +52,10 @@
     "@types/sinon": "1.16.34",
     "@types/string-template": "1.0.2",
     "awesome-typescript-loader": "3.0.0-beta.18",
-    "babel-cli": "6.18.0",
+    "babel-cli": "6.22.1",
     "babel-loader": "6.2.10",
-    "babel-plugin-transform-runtime": "6.15.0",
-    "babel-preset-es2015": "6.18.0",
+    "babel-plugin-transform-runtime": "6.22.0",
+    "babel-preset-es2015": "6.22.0",
     "chai": "4.0.0-canary.1",
     "coveralls": "2.11.15",
     "istanbul": "1.1.0-alpha.1",