diff --git a/package.json b/package.json
index a17dc96..e8e60ee 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "@angular/animations": "~7.2.0",
     "@angular/common": "~7.2.0",
     "@angular/compiler": "~7.2.0",
-    "@angular/core": "~7.2.0",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~7.2.0",
     "@angular/platform-browser": "~7.2.0",
     "@angular/platform-browser-dynamic": "~7.2.0",
diff --git a/yarn.lock b/yarn.lock
index 718ca32..833a8ce 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -167,12 +167,12 @@
   dependencies:
     tslib "^1.9.0"
 
-"@angular/core@~7.2.0":
-  version "7.2.15"
-  resolved "https://registry.npm.taobao.org/@angular/core/download/@angular/core-7.2.15.tgz#c00d4be0ebe95b70f7631154169509cc97934e9a"
-  integrity sha1-wA1L4OvpW3D3YxFUFpUJzJeTTpo=
+"@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@~7.2.0":
   version "7.2.15"
@@ -7082,6 +7082,11 @@ tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   resolved "https://registry.npm.taobao.org/tslib/download/tslib-1.9.3.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Ftslib%2Fdownload%2Ftslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
   integrity sha1-1+TdeSRdhUKMTX5IIqeZF5VMooY=
 
+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@~5.11.0:
   version "5.11.0"
   resolved "https://registry.npm.taobao.org/tslint/download/tslint-5.11.0.tgz#98f30c02eae3cde7006201e4c33cb08b48581eed"