diff --git a/package-lock.json b/package-lock.json
index 8ea908d..6805b3c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -133,6 +133,23 @@
         "tslib": "^1.9.0"
       }
     },
+    "@angular/cdk": {
+      "version": "8.2.3",
+      "resolved": "https://registry.npmjs.org/@angular/cdk/-/cdk-8.2.3.tgz",
+      "integrity": "sha512-ZwO5Sn720RA2YvBqud0JAHkZXjmjxM0yNzCO8RVtRE9i8Gl26Wk0j0nQeJkVm4zwv2QO8MwbKUKGTMt8evsokA==",
+      "requires": {
+        "parse5": "^5.0.0",
+        "tslib": "^1.7.1"
+      },
+      "dependencies": {
+        "parse5": {
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/parse5/-/parse5-5.1.1.tgz",
+          "integrity": "sha512-ugq4DFI0Ptb+WWjAdOK16+u/nHfiIrcE+sh8kZMaM0WllQKLI9rOUq6c2b7cwPkXdzfQESqvoqK6ug7U/Yyzug==",
+          "optional": true
+        }
+      }
+    },
     "@angular/cli": {
       "version": "8.3.19",
       "resolved": "https://registry.npm.taobao.org/@angular/cli/download/@angular/cli-8.3.19.tgz",
@@ -976,11 +993,18 @@
       }
     },
     "@angular/core": {
-      "version": "8.2.14",
-      "resolved": "https://registry.npm.taobao.org/@angular/core/download/@angular/core-8.2.14.tgz",
-      "integrity": "sha1-NVZvWxlIA2kilHfn4OD950C9UgQ=",
+      "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": {
@@ -997,6 +1021,14 @@
       "integrity": "sha1-4YsnpoQVd85ImtMVQBUNpaREyjc=",
       "dev": true
     },
+    "@angular/material": {
+      "version": "8.2.3",
+      "resolved": "https://registry.npmjs.org/@angular/material/-/material-8.2.3.tgz",
+      "integrity": "sha512-SOczkIaqes+r+9XF/UUiokidfFKBpHkOPIaFK857sFD0FBNPvPEpOr5oHKCG3feERRwAFqHS7Wo2ohVEWypb5A==",
+      "requires": {
+        "tslib": "^1.7.1"
+      }
+    },
     "@angular/platform-browser": {
       "version": "8.2.14",
       "resolved": "https://registry.npm.taobao.org/@angular/platform-browser/download/@angular/platform-browser-8.2.14.tgz",
@@ -2278,6 +2310,11 @@
         "color-convert": "^1.9.0"
       }
     },
+    "ansi_up": {
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/ansi_up/-/ansi_up-4.0.4.tgz",
+      "integrity": "sha512-vRxC8q6QY918MbehO869biJW4tiunJdjOhi5fpY6NLOliBQlZhOkKgABJKJqH+JZfb/WfjvjN1chLWI6tODerw=="
+    },
     "anymatch": {
       "version": "3.1.1",
       "resolved": "https://registry.npm.taobao.org/anymatch/download/anymatch-3.1.1.tgz",
diff --git a/package.json b/package.json
index 4780fe7..199f2e9 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@angular/cdk": "^8.2.3",
     "@angular/common": "~8.2.14",
     "@angular/compiler": "~8.2.14",
-    "@angular/core": "~8.2.14",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~8.2.14",
     "@angular/material": "^8.2.3",
     "@angular/platform-browser": "~8.2.14",
diff --git a/yarn.lock b/yarn.lock
index d6750f9..048437b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -183,12 +183,12 @@
   dependencies:
     tslib "^1.9.0"
 
-"@angular/core@~8.2.14":
-  version "8.2.14"
-  resolved "https://registry.npm.taobao.org/@angular/core/download/@angular/core-8.2.14.tgz#35566f5b19480369229477e7e0e0fde740bd5204"
-  integrity sha1-NVZvWxlIA2kilHfn4OD950C9UgQ=
+"@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@~8.2.14":
   version "8.2.14"
@@ -7359,6 +7359,11 @@ 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#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#6ffb180986d63afa1e531feb2a134dbf961e27d3"