diff --git a/Planner-SPA/package-lock.json b/Planner-SPA/package-lock.json
index 35fea31..c95304e 100644
--- a/Planner-SPA/package-lock.json
+++ b/Planner-SPA/package-lock.json
@@ -527,9 +527,19 @@
       }
     },
     "@angular/core": {
-      "version": "9.0.4",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-9.0.4.tgz",
-      "integrity": "sha512-6RqQb1GO2uglSlgiGbxhvy8plztZtABCWLRn0X+T1PnrxoqgxqA5WkKJjGxao+1M/ECW1V0fw4Xy7DE6KvAJwQ=="
+      "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": "9.0.4",
diff --git a/Planner-SPA/package.json b/Planner-SPA/package.json
index ba39479..4ea15aa 100644
--- a/Planner-SPA/package.json
+++ b/Planner-SPA/package.json
@@ -17,7 +17,7 @@
     "@angular/cdk": "^9.1.3",
     "@angular/common": "~9.0.3",
     "@angular/compiler": "~9.0.3",
-    "@angular/core": "~9.0.3",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~9.0.3",
     "@angular/material": "^9.1.3",
     "@angular/platform-browser": "~9.0.3",