diff --git a/package.json b/package.json
index 07c8dbe..0937c39 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@angular/cdk": "^9.1.0",
     "@angular/common": "~9.0.4",
     "@angular/compiler": "~9.0.4",
-    "@angular/core": "~9.0.4",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~9.0.4",
     "@angular/material": "^9.1.0",
     "@angular/platform-browser": "~9.0.4",
diff --git a/yarn.lock b/yarn.lock
index f7508ab..edd3b84 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -202,10 +202,12 @@
   resolved "https://registry.yarnpkg.com/@angular/compiler/-/compiler-9.0.4.tgz#038c9cdbf76f1cce47bd1b355c7d212cc89b18f9"
   integrity sha512-+Ku8RUU00yHaKVkVw6YIfM3c5Gmvas5gJcEleiagkLbc1f/jKk1cY4gaUP6xn4TLypFM7NQglneWd+E+8wh0hQ==
 
-"@angular/core@~9.0.4":
-  version "9.0.4"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-9.0.4.tgz#6baa5ec6c594b47de541e47f4aa37241adec393a"
-  integrity sha512-6RqQb1GO2uglSlgiGbxhvy8plztZtABCWLRn0X+T1PnrxoqgxqA5WkKJjGxao+1M/ECW1V0fw4Xy7DE6KvAJwQ==
+"@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 "^2.0.0"
 
 "@angular/forms@~9.0.4":
   version "9.0.4"
@@ -8432,6 +8434,11 @@ tslib@^1.11.1, tslib@^1.7.1, tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.11.1.tgz#eb15d128827fbee2841549e171f45ed338ac7e35"
   integrity sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA==
 
+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-config-prettier@^1.18.0:
   version "1.18.0"
   resolved "https://registry.yarnpkg.com/tslint-config-prettier/-/tslint-config-prettier-1.18.0.tgz#75f140bde947d35d8f0d238e0ebf809d64592c37"