update package.json

Author: yama-dev

package.json

@@ -36,7 +36,7 @@
     "babel-preset-env": "^1.6.1",
     "browser-sync": "^2.23.6",
     "npm-run-all": "^4.1.2",
-    "webpack": "^4.26.1",
+    "webpack": "^4.27.1",
     "webpack-cli": "^3.1.2"
   }
 }