diff --git a/package-lock.json b/package-lock.json
index ed284da..c180029 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,12 +32,20 @@
             }
         },
         "@angular/core": {
-            "version": "4.4.6",
-            "resolved": "http://r.cnpmjs.org/@angular/core/download/@angular/core-4.4.6.tgz",
-            "integrity": "sha1-EwMf0Q3P5DiHVBmzjyESCVi8I1Q=",
+            "version": "11.0.5",
+            "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+            "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
             "dev": true,
             "requires": {
-                "tslib": "^1.7.1"
+                "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==",
+                    "dev": true
+                }
             }
         },
         "@angular/forms": {
diff --git a/package.json b/package.json
index 8789f5d..e8dd1f8 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
         "@angular/animations": "^4.0.1",
         "@angular/common": "^4.0.1",
         "@angular/compiler": "^4.0.1",
-        "@angular/core": "^4.0.1",
+        "@angular/core": "^11.0.5",
         "@angular/forms": "^4.0.1",
         "@angular/http": "^4.0.1",
         "@angular/platform-browser": "^4.0.1",