- fix npm security warning (#123)

Author: Marc-Andre-Rivet

package.json

@@ -54,6 +54,6 @@
     "eslint-plugin-react": "^6.9.0",
     "prettier": "^1.14.3",
     "react-hot-loader": "^1.3.0",
-    "webpack-dev-server": "^3.1.9"
+    "webpack-dev-server": "^3.1.11"
   }
 }