diff --git a/fe/package.json b/fe/package.json
index b9e939d..a59fa9d 100644
--- a/fe/package.json
+++ b/fe/package.json
@@ -21,7 +21,7 @@
     "@angular/animations": "^6.0.3",
     "@angular/common": "^6.0.3",
     "@angular/compiler": "^6.0.3",
-    "@angular/core": "^6.0.3",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^6.0.3",
     "@angular/http": "^6.0.3",
     "@angular/platform-browser": "^6.0.3",
diff --git a/fe/yarn.lock b/fe/yarn.lock
index 3eb0409..f081698 100644
--- a/fe/yarn.lock
+++ b/fe/yarn.lock
@@ -141,7 +141,13 @@
   dependencies:
     tslib "^1.9.0"
 
-"@angular/core@^6.0.0", "@angular/core@^6.0.3":
+"@angular/core@^11.0.5":
+  version "11.0.5"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-11.0.5.tgz#b8c448c3cd4f6dae7327cc1ba4ee2aa29c8dbc26"
+  dependencies:
+    tslib "^2.0.0"
+
+"@angular/core@^6.0.0":
   version "6.0.9"
   resolved "http://registry.npm.taobao.org/@angular/core/download/@angular/core-6.0.9.tgz#a68cc0f5ddffa535df65f3e798ba2fcd6f6eec1b"
   dependencies:
@@ -7365,6 +7371,10 @@ tslib@^1.7.1, tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   version "1.9.3"
   resolved "http://registry.npm.taobao.org/tslib/download/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
 
+tslib@^2.0.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
+
 tslint-config-prettier@^1.12.0:
   version "1.13.0"
   resolved "http://registry.npm.taobao.org/tslint-config-prettier/download/tslint-config-prettier-1.13.0.tgz#189e821931ad89e0364e4e292d5c44a14e90ecd6"