diff --git a/package-lock.json b/package-lock.json
index 06d2578..eb54dcc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -982,11 +982,18 @@
       }
     },
     "@angular/core": {
-      "version": "8.2.3",
-      "resolved": "https://registry.npm.taobao.org/@angular/core/download/@angular/core-8.2.3.tgz",
-      "integrity": "sha1-BWfZ25a/1bFV8BHp9t456NdNuVQ=",
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
       "requires": {
-        "tslib": "^1.9.0"
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.4.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+          "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
+        }
       }
     },
     "@angular/forms": {
diff --git a/package.json b/package.json
index fac4652..d8287f5 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@angular/animations": "~8.2.3",
     "@angular/common": "~8.2.3",
     "@angular/compiler": "~8.2.3",
-    "@angular/core": "~8.2.3",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~8.2.3",
     "@angular/platform-browser": "~8.2.3",
     "@angular/platform-browser-dynamic": "~8.2.3",