diff --git a/package.json b/package.json
index ee74e31..ae58311 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@angular/cdk": "^9.0.0",
     "@angular/common": "~9.0.0",
     "@angular/compiler": "~9.0.0",
-    "@angular/core": "~9.0.0",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~9.0.0",
     "@angular/material": "^9.0.0",
     "@angular/platform-browser": "~9.0.0",
diff --git a/yarn.lock b/yarn.lock
index c2cddc3..336d321 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -182,10 +182,12 @@
   resolved "https://registry.yarnpkg.com/@angular/compiler/-/compiler-9.0.2.tgz#be238eb2e575e2945f8e88c4ae09d99b280b797d"
   integrity sha512-IWlKn5v3y7k1Z2K2wfNNzbn9xgA4fFlWyPe9QpdS8iy6/bPe5GfKhHbMYIza5eIhPXDN93zdEptiAIXGP3kLBQ==
 
-"@angular/core@~9.0.0":
-  version "9.0.2"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-9.0.2.tgz#250093b6a4d3137e2cc30e73e6cee919f1386165"
-  integrity sha512-ccVPR6RZo2s9O9phO0TJ60QZ0WA7qfUMzo0xnpBW0XGcbTzLEn9upvs+0PX64f9UpnHz/MQo0wsqYvTLuoz7Yw==
+"@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@~9.0.0":
   version "9.0.2"
@@ -8461,6 +8463,11 @@ tslib@^1.10.0, tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.11.0.tgz#f1f3528301621a53220d58373ae510ff747a66bc"
   integrity sha512-BmndXUtiTn/VDDrJzQE7Mm22Ix3PxgLltW9bSNLoeCY31gnG2OPx0QqJnuc9oMIKioYrz487i6K9o4Pdn0j+Kg==
 
+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@~5.18.0:
   version "5.18.0"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.18.0.tgz#f61a6ddcf372344ac5e41708095bbf043a147ac6"