diff --git a/package.json b/package.json
index 2dc7d94..ad83889 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "@angular/animations": "^8.1.1",
     "@angular/common": "^8.1.1",
     "@angular/compiler": "^8.1.1",
-    "@angular/core": "^8.1.1",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^8.1.1",
     "@angular/http": "^7.2.15",
     "@angular/platform-browser": "^8.1.1",
diff --git a/yarn.lock b/yarn.lock
index 9ba3a81..b540b74 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -83,11 +83,11 @@
   dependencies:
     tslib "^1.9.0"
 
-"@angular/core@^8.1.1":
-  version "8.1.1"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-8.1.1.tgz#888fb879906a46429ddac7163fe25915ce5a7f8f"
+"@angular/core@^11.0.5":
+  version "11.0.5"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-11.0.5.tgz#b8c448c3cd4f6dae7327cc1ba4ee2aa29c8dbc26"
   dependencies:
-    tslib "^1.9.0"
+    tslib "^2.0.0"
 
 "@angular/forms@^8.1.1":
   version "8.1.1"
@@ -7467,6 +7467,10 @@ tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.10.0.tgz#c3c19f95973fb0a62973fb09d90d961ee43e5c8a"
 
+tslib@^2.0.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
+
 tslint@~5.18.0:
   version "5.18.0"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.18.0.tgz#f61a6ddcf372344ac5e41708095bbf043a147ac6"