diff --git a/package-lock.json b/package-lock.json
index ba7d67e..6b2aa9b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
         "@angular/animations": "~8.0.1",
         "@angular/common": "~8.0.1",
         "@angular/compiler": "~8.0.1",
-        "@angular/core": "~8.0.1",
+        "@angular/core": "~11.0.5",
         "@angular/forms": "~8.0.1",
         "@angular/platform-browser": "~8.0.1",
         "@angular/platform-browser-dynamic": "~8.0.1",
@@ -419,17 +419,22 @@
       }
     },
     "node_modules/@angular/core": {
-      "version": "8.0.3",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-8.0.3.tgz",
-      "integrity": "sha512-IIxrtIPNuv2+HudER9J1nmPGiGJ4aRpeiFM9V4lSiSFv50RzuaoG60XqYIpUyuBdgvyKigcrfSbu9+x1vyN0hw==",
+      "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": "8.0.3",
       "resolved": "https://registry.npmjs.org/@angular/forms/-/forms-8.0.3.tgz",
@@ -12393,11 +12398,18 @@
       }
     },
     "@angular/core": {
-      "version": "8.0.3",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-8.0.3.tgz",
-      "integrity": "sha512-IIxrtIPNuv2+HudER9J1nmPGiGJ4aRpeiFM9V4lSiSFv50RzuaoG60XqYIpUyuBdgvyKigcrfSbu9+x1vyN0hw==",
+      "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 c7270b2..167b73a 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "@angular/animations": "~8.0.1",
     "@angular/common": "~8.0.1",
     "@angular/compiler": "~8.0.1",
-    "@angular/core": "~8.0.1",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~8.0.1",
     "@angular/platform-browser": "~8.0.1",
     "@angular/platform-browser-dynamic": "~8.0.1",