diff --git a/package-lock.json b/package-lock.json
index 341a2281..f7175570 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -114,11 +114,18 @@
       }
     },
     "@angular/core": {
-      "version": "4.4.7",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-4.4.7.tgz",
-      "integrity": "sha512-Jxs6gNTl5KjXflg5vi5rlnokq1johFccN94qSOgDv+Mg1iuGF2i9p7EHkw3Y8jBCVaSLw1qgHE+wMb6KTlJDLA==",
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
       "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=="
+        }
       }
     },
     "@angular/forms": {
diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 449616af..912ffc55
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
   "dependencies": {
     "@angular/common": "^4.0.0",
     "@angular/compiler": "^4.0.0",
-    "@angular/core": "^4.0.0",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^4.0.0",
     "@angular/http": "^4.0.0",
     "@angular/platform-browser": "^4.0.0",