diff --git a/package-lock.json b/package-lock.json
index cfb4753..3ec66bf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "dependencies": {
         "@angular/common": "~8.1.2",
         "@angular/compiler": "~8.1.2",
-        "@angular/core": "~8.1.2",
+        "@angular/core": "~11.0.5",
         "@angular/forms": "~8.1.2",
         "@angular/platform-browser": "~8.1.2",
         "@angular/platform-browser-dynamic": "~8.1.2",
@@ -439,17 +439,22 @@
       }
     },
     "node_modules/@angular/core": {
-      "version": "8.1.3",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-8.1.3.tgz",
-      "integrity": "sha512-45ocymDkXhmgluhaIX/O6IgqGPCLOlSYEXYpJ660QS1JgprKU7Ae9mWiNSmbBmT0OGV/sKKF8SNMQAGOHgio6Q==",
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
       "dependencies": {
-        "tslib": "^1.9.0"
+        "tslib": "^2.0.0"
       },
       "peerDependencies": {
-        "rxjs": "^6.4.0",
-        "zone.js": "~0.9.1"
+        "rxjs": "^6.5.3",
+        "zone.js": "~0.10.3"
       }
     },
+    "node_modules/@angular/core/node_modules/tslib": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+      "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
+    },
     "node_modules/@angular/forms": {
       "version": "8.1.3",
       "resolved": "https://registry.npmjs.org/@angular/forms/-/forms-8.1.3.tgz",
@@ -12732,11 +12737,18 @@
       }
     },
     "@angular/core": {
-      "version": "8.1.3",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-8.1.3.tgz",
-      "integrity": "sha512-45ocymDkXhmgluhaIX/O6IgqGPCLOlSYEXYpJ660QS1JgprKU7Ae9mWiNSmbBmT0OGV/sKKF8SNMQAGOHgio6Q==",
+      "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 963a4e7..65f9b26 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
   "dependencies": {
     "@angular/common": "~8.1.2",
     "@angular/compiler": "~8.1.2",
-    "@angular/core": "~8.1.2",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~8.1.2",
     "@angular/platform-browser": "~8.1.2",
     "@angular/platform-browser-dynamic": "~8.1.2",