diff --git a/package-lock.json b/package-lock.json
index 4ec1e36..8a13bfd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -315,11 +315,18 @@
       }
     },
     "@angular/core": {
-      "version": "8.0.1",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-8.0.1.tgz",
-      "integrity": "sha512-lUSYDztaoqpYq169MARIjtTIRuiCAioq875HQpwqApBY3zdSWPeFqU3LohUQnWq6bSVsAup5jn6Dc+juZ4YBNQ==",
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
       "requires": {
-        "tslib": "^1.9.0"
+        "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": {
diff --git a/package.json b/package.json
index e297717..4c1ffa1 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "@angular/cdk": "^8.0.1",
     "@angular/common": "~8.0.0",
     "@angular/compiler": "~8.0.0",
-    "@angular/core": "~8.0.0",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~8.0.0",
     "@angular/material": "^8.0.1",
     "@angular/platform-browser": "~8.0.0",
diff --git a/yarn.lock b/yarn.lock
index c2d23bb..bd08ab2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -179,12 +179,12 @@
   dependencies:
     tslib "^1.9.0"
 
-"@angular/core@~8.0.0":
-  version "8.0.2"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-8.0.2.tgz#378204bcad9be3c9edd27db5bbc3f8346cfef083"
-  integrity sha512-g8BRvGZxTXb5GZ/xoC5Z94DGK3wMiD2jbmEQEbXGNM+c8E/Mo/W8GF44P7EU2d+V1oJoUh75SRK6U/StC+rLqA==
+"@angular/core@~11.0.5":
+  version "11.0.5"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-11.0.5.tgz#b8c448c3cd4f6dae7327cc1ba4ee2aa29c8dbc26"
+  integrity sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==
   dependencies:
-    tslib "^1.9.0"
+    tslib "^2.0.0"
 
 "@angular/forms@~8.0.0":
   version "8.0.2"
@@ -6948,6 +6948,11 @@ tslib@^1.7.1, tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.10.0.tgz#c3c19f95973fb0a62973fb09d90d961ee43e5c8a"
   integrity sha512-qOebF53frne81cf0S9B41ByenJ3/IuH8yJKngAX35CmiZySA0khhkovshKK+jGCaMnVomla7gVlIcc3EvKPbTQ==
 
+tslib@^2.0.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
+  integrity sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ==
+
 tslint@~5.15.0:
   version "5.15.0"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.15.0.tgz#6ffb180986d63afa1e531feb2a134dbf961e27d3"