Fixed security issues with react-events-aggregator

samples/react-events-aggregator/README.md

@@ -1,6 +1,8 @@
 # SPFx Event Aggregator Sample #
 
-# Important: The event aggregator is deprecated and no longer available in the SharePoint Framework. Please use [dynamic data](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/dynamic-data) instead. #
+> ## DEPRECATED 
+>
+> The event aggregator is deprecated and no longer available in the SharePoint Framework. Please use [dynamic data](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/dynamic-data) instead. #
 
 Following issue [#659](https://github.com/SharePoint/sp-dev-fx-webparts/issues/659), the event aggregator functionality is no longer working. This feature was in ALPHA state and never made it to general availability state. There is a replacement for the event aggregator. Please have a look at the dynamic data functionality and use it instead [https://docs.microsoft.com/en-us/sharepoint/dev/spfx/dynamic-data](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/dynamic-data). There is already a sample in this library [https://github.com/SharePoint/sp-dev-fx-webparts/tree/master/samples/react-events-dynamicdata](https://github.com/SharePoint/sp-dev-fx-webparts/tree/master/samples/react-events-dynamicdata)
 

samples/react-events-aggregator/package.json

@@ -14,7 +14,9 @@
     "@microsoft/sp-webpart-base": "~1.4.1",
     "@microsoft/sp-lodash-subset": "~1.4.1",
     "@microsoft/sp-office-ui-fabric-core": "~1.4.1",
-    "@types/webpack-env": ">=1.12.1 <1.14.0"
+    "@types/webpack-env": ">=1.12.1 <1.14.0",
+    "minimist": ">=1.2.3",
+    "acorn": ">=5.7.4"
   },
   "devDependencies": {
     "@microsoft/sp-build-web": "~1.4.1",