diff --git a/package-lock.json b/package-lock.json
index 8b89526..0f51c6d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "angular9",
-  "version": "1.1.0",
+  "version": "1.2.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -483,9 +483,19 @@
       }
     },
     "@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/fire": {
       "version": "5.4.2",
diff --git a/package.json b/package.json
index c543009..ecae52e 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "@angular/cdk": "^9.0.0",
     "@angular/common": "^9.0.1",
     "@angular/compiler": "^9.0.1",
-    "@angular/core": "^9.0.1",
+    "@angular/core": "^11.0.5",
     "@angular/fire": "^5.4.2",
     "@angular/flex-layout": "^9.0.0-beta.29",
     "@angular/forms": "^9.0.1",