diff --git a/package.json b/package.json
index 3477636..4646116 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "@angular/animations": "^4.0.0",
     "@angular/common": "^4.0.0",
     "@angular/compiler": "^4.0.0",
-    "@angular/core": "^4.0.0",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^4.0.0",
     "@angular/http": "^4.0.0",
     "@angular/material": "2.0.0-beta.3",
diff --git a/yarn.lock b/yarn.lock
index 2bcc9a9..e0c23ca 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -92,11 +92,11 @@
   dependencies:
     tslib "^1.7.1"
 
-"@angular/core@^4.0.0":
-  version "4.2.2"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-4.2.2.tgz#af5587dda275935868709d8c186e2dc2a1d70a00"
+"@angular/core@^11.0.5":
+  version "11.0.5"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-11.0.5.tgz#b8c448c3cd4f6dae7327cc1ba4ee2aa29c8dbc26"
   dependencies:
-    tslib "^1.7.1"
+    tslib "^2.0.0"
 
 "@angular/forms@^4.0.0":
   version "4.2.2"
@@ -5791,6 +5791,10 @@ tslib@^1.7.1:
   version "1.7.1"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.7.1.tgz#bc8004164691923a79fe8378bbeb3da2017538ec"
 
+tslib@^2.0.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
+
 tslint@^5.0.0:
   version "5.4.3"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.4.3.tgz#761c8402b80e347b7733a04390a757b253580467"