diff --git a/package-lock.json b/package-lock.json
index 1e4e517..2a504f2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -667,9 +667,19 @@
       }
     },
     "@angular/core": {
-      "version": "9.0.1",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-9.0.1.tgz",
-      "integrity": "sha512-q/3VLGM98euB/ZluSuMqvWyQb563iabRcVkC/DrHqCQMadV1ZpvuOgf8Gm092d8GY/iC4CGlTsN0wiVapMxplQ=="
+      "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": "9.0.1",
@@ -6946,7 +6956,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -7311,7 +7322,8 @@
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -7359,6 +7371,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -7397,11 +7410,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
diff --git a/package.json b/package.json
index ca77bbc..7118904 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "@angular/cdk": "^8.0.0",
     "@angular/common": "9.0.1",
     "@angular/compiler": "9.0.1",
-    "@angular/core": "9.0.1",
+    "@angular/core": "11.0.5",
     "@angular/forms": "9.0.1",
     "@angular/material": "^8.0.0",
     "@angular/platform-browser": "9.0.1",