diff --git a/demo/graph-tutorial/package-lock.json b/demo/graph-tutorial/package-lock.json
index 18b9805..c7ea883 100644
--- a/demo/graph-tutorial/package-lock.json
+++ b/demo/graph-tutorial/package-lock.json
@@ -14929,9 +14929,9 @@
       "dev": true
     },
     "windows-iana": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/windows-iana/-/windows-iana-4.2.1.tgz",
-      "integrity": "sha512-ewNtGiWhAh66r5lYeWwiYWgg3ERcD+KiLMOqA8UCAKnKkFieb9M0VprLt7HD37bRFZKP7CLyXksj2L5hbrtnnw=="
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/windows-iana/-/windows-iana-5.0.2.tgz",
+      "integrity": "sha512-CRay/BGeiaFn89994EbsKf8YaKDgBEBDphEPY6M/mhKkScCpJMLfY7JrJD4BM5+svR46lI+x3QUWiynqh+1AOw=="
     },
     "worker-farm": {
       "version": "1.7.0",
diff --git a/demo/graph-tutorial/package.json b/demo/graph-tutorial/package.json
index 35e77f5..fd03807 100644
--- a/demo/graph-tutorial/package.json
+++ b/demo/graph-tutorial/package.json
@@ -28,7 +28,7 @@
     "moment-timezone": "^0.5.33",
     "rxjs": "~6.6.0",
     "tslib": "^2.0.0",
-    "windows-iana": "^4.2.1",
+    "windows-iana": "^5.0.2",
     "zone.js": "~0.11.3"
   },
   "devDependencies": {
diff --git a/tutorial/02-create-app.md b/tutorial/02-create-app.md
index 9bd8b90..d0d608b 100644
--- a/tutorial/02-create-app.md
+++ b/tutorial/02-create-app.md
@@ -41,7 +41,7 @@ Before moving on, install some additional packages that you will use later:
     ```Shell
     npm install bootstrap@4.6.0 @ng-bootstrap/ng-bootstrap@9.1.0
     npm install @azure/msal-browser@2.14.0 @azure/msal-angular@2.0.0-beta.4
-    npm install moment-timezone@0.5.33 windows-iana@5.0.1
+    npm install moment-timezone@0.5.33 windows-iana@5.0.2
     npm install @microsoft/microsoft-graph-client@2.2.1 @microsoft/microsoft-graph-types@1.35.0
     ```