fix deps

Author: SaraVieira

packages/node-services/package.json

@@ -10,7 +10,7 @@
     "constants-browserify": "^1.0.0",
     "events": "^3.0.0",
     "resolve": "^1.10.0",
-    "util": "0.11.1",
+    "util": "^0.12.1",
     "ws": "^6.1.0"
   },
   "devDependencies": {

packages/sandbox-hooks/package.json

@@ -9,6 +9,7 @@
   },
   "dependencies": {
     "codesandbox-api": "^0.0.22",
-    "console-feed": "^2.8.5"
+    "console-feed": "^2.8.5",
+    "react-dev-utils": "3.1.1"
   }
 }