diff --git a/src/DemoApp/IdentityServer/package-lock.json b/src/DemoApp/IdentityServer/package-lock.json
index 5fc7979..c69fd4f 100644
--- a/src/DemoApp/IdentityServer/package-lock.json
+++ b/src/DemoApp/IdentityServer/package-lock.json
@@ -4767,9 +4767,9 @@
       "dev": true
     },
     "moment-timezone": {
-      "version": "0.5.28",
-      "resolved": "https://registry.npm.taobao.org/moment-timezone/download/moment-timezone-0.5.28.tgz",
-      "integrity": "sha1-8JPXidCR7XsFXYKqgagkZ/cuQzg=",
+      "version": "0.5.35",
+      "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.35.tgz",
+      "integrity": "sha512-cY/pBOEXepQvlgli06ttCTKcIf8cD1nmNwOKQQAdHBqYApQSpAqotBMX0RJZNgMp6i0PlZuf1mFtnlyEkwyvFw==",
       "dev": true,
       "requires": {
         "moment": ">= 2.9.0"
diff --git a/src/DemoApp/IdentityServer/package.json b/src/DemoApp/IdentityServer/package.json
index 01c1750..03032ee 100644
--- a/src/DemoApp/IdentityServer/package.json
+++ b/src/DemoApp/IdentityServer/package.json
@@ -22,7 +22,7 @@
     "jquery-slimscroll": "1.3.8",
     "knockout": "3.5.1",
     "moment": "2.24.0",
-    "moment-timezone": "0.5.28",
+    "moment-timezone": "0.5.35",
     "qrcode_js": "1.0.0",
     "jqGrid": "5.4.0",
     "select2": "4.0.5",