diff --git a/visualization/app/codeCharta/util/fileDownloader.ts b/visualization/app/codeCharta/util/fileDownloader.ts
index b4dbc20856..6da81cc62c 100644
--- a/visualization/app/codeCharta/util/fileDownloader.ts
+++ b/visualization/app/codeCharta/util/fileDownloader.ts
@@ -13,7 +13,6 @@ import {
 } from "../codeCharta.model"
 import { DownloadCheckboxNames } from "../ui/dialog/dialog.download.component"
 import { CodeChartaService } from "../codeCharta.service"
-import { stringify } from "querystring"
 import { MetricService } from "../state/metric.service"
 const clone = require("rfdc")()
 
@@ -101,7 +100,7 @@ export class FileDownloader {
 	}
 
 	private static downloadData(data: ExportCCFile, fileName: string) {
-		let dataJson = stringify(data)
+		let dataJson = JSON.stringify(data)
 		if (typeof data === "object") {
 			dataJson = angular.toJson(data)
 		}
diff --git a/visualization/package-lock.json b/visualization/package-lock.json
index 376003d498..b7b3d17198 100644
--- a/visualization/package-lock.json
+++ b/visualization/package-lock.json
@@ -700,9 +700,9 @@
 			"dev": true
 		},
 		"@types/node": {
-			"version": "11.12.0",
-			"resolved": "https://registry.npmjs.org/@types/node/-/node-11.12.0.tgz",
-			"integrity": "sha512-Lg00egj78gM+4aE0Erw05cuDbvX9sLJbaaPwwRtdCdAMnIudqrQZ0oZX98Ek0yiSK/A2nubHgJfvII/rTT2Dwg==",
+			"version": "14.0.14",
+			"resolved": "https://registry.npmjs.org/@types/node/-/node-14.0.14.tgz",
+			"integrity": "sha512-syUgf67ZQpaJj01/tRTknkMNoBBLWJOBODF0Zm4NrXmiSuxjymFrxnTu1QVYRubhVkRcZLYZG8STTwJRdVm/WQ==",
 			"dev": true
 		},
 		"@types/parse-json": {
@@ -1425,7 +1425,7 @@
 		},
 		"ansi-escapes": {
 			"version": "1.4.0",
-			"resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
+			"resolved": "http://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
 			"integrity": "sha1-06ioOzGapneTZisT52HHkRQiMG4="
 		},
 		"ansi-html": {
@@ -5950,7 +5950,7 @@
 		},
 		"external-editor": {
 			"version": "1.1.1",
-			"resolved": "https://registry.npmjs.org/external-editor/-/external-editor-1.1.1.tgz",
+			"resolved": "http://registry.npmjs.org/external-editor/-/external-editor-1.1.1.tgz",
 			"integrity": "sha1-Etew24UPf/fnCBuvQAVwAGDEYAs=",
 			"requires": {
 				"extend": "^3.0.0",
@@ -8829,7 +8829,7 @@
 		},
 		"inquirer": {
 			"version": "1.2.3",
-			"resolved": "https://registry.npmjs.org/inquirer/-/inquirer-1.2.3.tgz",
+			"resolved": "http://registry.npmjs.org/inquirer/-/inquirer-1.2.3.tgz",
 			"integrity": "sha1-TexvMvN+97sLLtPx0aXD9UUHSRg=",
 			"requires": {
 				"ansi-escapes": "^1.1.0",
@@ -8878,7 +8878,7 @@
 			"dependencies": {
 				"lodash": {
 					"version": "3.10.1",
-					"resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
+					"resolved": "http://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
 					"integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y="
 				}
 			}
@@ -12564,7 +12564,7 @@
 		},
 		"onetime": {
 			"version": "1.1.0",
-			"resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+			"resolved": "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
 			"integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k="
 		},
 		"opencollective-postinstall": {
@@ -17744,6 +17744,7 @@
 			"resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.3.28.tgz",
 			"integrity": "sha512-68Rc/aA6cswiaQ5SrE979UJcXX+ADA1z33/ZsPd+fbAiVdjZ16OXdbtGO+rJUUBgK6qdf3SOPhQf3K/ybF5Miw==",
 			"dev": true,
+			"optional": true,
 			"requires": {
 				"commander": "~2.15.0",
 				"source-map": "~0.6.1"
@@ -17753,13 +17754,15 @@
 					"version": "2.15.1",
 					"resolved": "https://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
 					"integrity": "sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==",
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"source-map": {
 					"version": "0.6.1",
 					"resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
 					"integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-					"dev": true
+					"dev": true,
+					"optional": true
 				}
 			}
 		},
diff --git a/visualization/package.json b/visualization/package.json
index 71510ee3ab..496375c23f 100644
--- a/visualization/package.json
+++ b/visualization/package.json
@@ -119,7 +119,7 @@
 		"@types/d3-hierarchy": "^1.1.0",
 		"@types/jest": "^26.0.3",
 		"@types/lodash": "^4.14.123",
-		"@types/node": "^11.11.3",
+		"@types/node": "^14.0.14",
 		"@types/puppeteer": "^3.0.1",
 		"@typescript-eslint/eslint-plugin": "^2.23.0",
 		"@typescript-eslint/parser": "^2.23.0",