diff --git a/package-lock.json b/package-lock.json
index 35ffab2..8a28735 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -992,11 +992,18 @@
       }
     },
     "@angular/core": {
-      "version": "8.1.0",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-8.1.0.tgz",
-      "integrity": "sha512-GviWJjOu6LJMYNbukdSK35VaXvSrp5LTNd0FbXoBQF+mhVVV/8cG4hTKKjxG1xwWXI5E1t5U4aUKXrKUNJ1sQg==",
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
       "requires": {
-        "tslib": "^1.9.0"
+        "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": {
@@ -1205,14 +1212,6 @@
         }
       }
     },
-    "@ng-bootstrap/ng-bootstrap": {
-      "version": "5.0.0-rc.1",
-      "resolved": "https://registry.npmjs.org/@ng-bootstrap/ng-bootstrap/-/ng-bootstrap-5.0.0-rc.1.tgz",
-      "integrity": "sha512-LRbA+qCbsY3rnXQiFbDG6M0fyDOi6n4MadUUrrnI6DyNAsH+uAg2twxkjXhkizUD6+XihpvR6AMsQ91T3Bndaw==",
-      "requires": {
-        "tslib": "^1.9.0"
-      }
-    },
     "@ngtools/webpack": {
       "version": "8.1.0",
       "resolved": "https://registry.npmjs.org/@ngtools/webpack/-/webpack-8.1.0.tgz",
diff --git a/package.json b/package.json
index 812e6f6..ee7daac 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@angular/cdk": "^8.1.1",
     "@angular/common": "~8.1.0",
     "@angular/compiler": "~8.1.0",
-    "@angular/core": "~8.1.0",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~8.1.0",
     "@angular/material": "^8.1.1",
     "@angular/platform-browser": "~8.1.0",