diff --git a/DOTNETCORE/Security/IdentityServer/Angular5CLIClient/package.json b/DOTNETCORE/Security/IdentityServer/Angular5CLIClient/package.json
index 42be9c4c..582d220a 100644
--- a/DOTNETCORE/Security/IdentityServer/Angular5CLIClient/package.json
+++ b/DOTNETCORE/Security/IdentityServer/Angular5CLIClient/package.json
@@ -24,7 +24,7 @@
     "core-js": "^2.4.1",
     "oidc-client": "^1.4.1",
     "rxjs": "^5.5.2",
-    "zone.js": "^0.8.14"
+    "zone.js": "^0.16.0"
   },
   "devDependencies": {
     "@angular/cli": "^1.7.3",