Update dependency webpack to v4.32.0

package.json

@@ -11,7 +11,7 @@
     "devDependencies": {
         "eslint": "5.16.0",
         "sass": "1.20.1",
-        "webpack": "4.31.0",
+        "webpack": "4.32.0",
         "webpack-cli": "3.3.2"
     }
 }