diff --git a/demo/package-lock.json b/demo/package-lock.json
index f5499dfe..045778a2 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -554,9 +554,19 @@
       }
     },
     "@angular/core": {
-      "version": "9.0.2",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-9.0.2.tgz",
-      "integrity": "sha512-ccVPR6RZo2s9O9phO0TJ60QZ0WA7qfUMzo0xnpBW0XGcbTzLEn9upvs+0PX64f9UpnHz/MQo0wsqYvTLuoz7Yw=="
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
+      "requires": {
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.4.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+          "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
+        }
+      }
     },
     "@angular/forms": {
       "version": "9.0.2",
diff --git a/demo/package.json b/demo/package.json
index bf853ad0..32e41ea7 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -16,7 +16,7 @@
     "@angular/animations": "9.0.2",
     "@angular/common": "9.0.2",
     "@angular/compiler": "9.0.2",
-    "@angular/core": "9.0.2",
+    "@angular/core": "11.0.5",
     "@angular/forms": "9.0.2",
     "@angular/http": "7.2.16",
     "@angular/platform-browser": "9.0.2",
diff --git a/demo/yarn.lock b/demo/yarn.lock
index f7b2072b..182b9704 100644
--- a/demo/yarn.lock
+++ b/demo/yarn.lock
@@ -164,9 +164,11 @@
   version "9.0.2"
   resolved "https://registry.yarnpkg.com/@angular/compiler/-/compiler-9.0.2.tgz#be238eb2e575e2945f8e88c4ae09d99b280b797d"
 
-"@angular/core@9.0.2":
-  version "9.0.2"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-9.0.2.tgz#250093b6a4d3137e2cc30e73e6cee919f1386165"
+"@angular/core@11.0.5":
+  version "11.0.5"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-11.0.5.tgz#b8c448c3cd4f6dae7327cc1ba4ee2aa29c8dbc26"
+  dependencies:
+    tslib "^2.0.0"
 
 "@angular/forms@9.0.2":
   version "9.0.2"
@@ -8233,6 +8235,10 @@ tslib@^1.10.0, tslib@^1.8.1, tslib@^1.9.0:
   version "1.13.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.13.0.tgz#c881e13cc7015894ed914862d276436fa9a47043"
 
+tslib@^2.0.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
+
 tslint@6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-6.0.0.tgz#1c0148beac4779924216302f192cdaa153618310"