diff --git a/package.json b/package.json
index bfbda52..2d0dea1 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "@angular/animations": "~8.2.9",
     "@angular/common": "~8.2.9",
     "@angular/compiler": "~8.2.9",
-    "@angular/core": "~8.2.9",
+    "@angular/core": "~11.0.5",
     "@angular/elements": "^8.2.11",
     "@angular/forms": "~8.2.9",
     "@angular/platform-browser": "~8.2.9",
diff --git a/yarn.lock b/yarn.lock
index b0154f4..c1b93fe 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -209,12 +209,12 @@
   dependencies:
     tslib "^1.9.0"
 
-"@angular/core@~8.2.9":
-  version "8.2.11"
-  resolved "https://registry.npm.taobao.org/@angular/core/download/@angular/core-8.2.11.tgz#85d1feca5ab7423ddc7468dd03ebe7c1ed7f3f06"
-  integrity sha1-hdH+ylq3Qj3cdGjdA+vnwe1/PwY=
+"@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/elements@^8.2.11":
   version "8.2.11"
@@ -8080,6 +8080,11 @@ tslib@1.10.0, tslib@^1.10.0, tslib@^1.7.1, tslib@^1.8.0, tslib@^1.8.1, tslib@^1.
   resolved "https://registry.npm.taobao.org/tslib/download/tslib-1.10.0.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Ftslib%2Fdownload%2Ftslib-1.10.0.tgz#c3c19f95973fb0a62973fb09d90d961ee43e5c8a"
   integrity sha1-w8GflZc/sKYpc/sJ2Q2WHuQ+XIo=
 
+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@~5.15.0:
   version "5.15.0"
   resolved "https://registry.npm.taobao.org/tslint/download/tslint-5.15.0.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Ftslint%2Fdownload%2Ftslint-5.15.0.tgz#6ffb180986d63afa1e531feb2a134dbf961e27d3"