diff --git a/package-lock.json b/package-lock.json
index 3b9f15f..4570110 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "dependencies": {
         "@angular/common": "^9.0.0",
         "@angular/compiler": "^9.0.0",
-        "@angular/core": "^9.0.0",
+        "@angular/core": "^11.0.5",
         "@angular/forms": "^9.0.0",
         "@angular/platform-browser": "^9.0.0",
         "@angular/platform-browser-dynamic": "^9.0.0",
@@ -913,15 +913,22 @@
       }
     },
     "node_modules/@angular/core": {
-      "version": "9.1.7",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-9.1.7.tgz",
-      "integrity": "sha512-uJSZ+rdGL47gc3A+Fal1XwJYB4WWpYJrNifvoQ2nOs+X5Qu+j0HN6GXPJb4kixoNzjYCGxmLoirdT3xhNZFcfQ==",
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
+      "dependencies": {
+        "tslib": "^2.0.0"
+      },
       "peerDependencies": {
         "rxjs": "^6.5.3",
-        "tslib": "^1.10.0",
         "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": "9.1.7",
       "resolved": "https://registry.npmjs.org/@angular/forms/-/forms-9.1.7.tgz",
@@ -18646,6 +18653,7 @@
       "dependencies": {
         "ansi-regex": {
           "version": "5.0.0",
+          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
           "dev": true
         },
         "ansi-styles": {
@@ -18820,10 +18828,19 @@
       }
     },
     "@angular/core": {
-      "version": "9.1.7",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-9.1.7.tgz",
-      "integrity": "sha512-uJSZ+rdGL47gc3A+Fal1XwJYB4WWpYJrNifvoQ2nOs+X5Qu+j0HN6GXPJb4kixoNzjYCGxmLoirdT3xhNZFcfQ==",
-      "requires": {}
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
+      "requires": {
+        "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": {
       "version": "9.1.7",
diff --git a/package.json b/package.json
index 1e9fe3d..2677503 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
   "dependencies": {
     "@angular/common": "^9.0.0",
     "@angular/compiler": "^9.0.0",
-    "@angular/core": "^9.0.0",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^9.0.0",
     "@angular/platform-browser": "^9.0.0",
     "@angular/platform-browser-dynamic": "^9.0.0",