diff --git a/client/package-lock.json b/client/package-lock.json
index 2159a74..b65dcf4 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -164,11 +164,18 @@
       }
     },
     "@angular/core": {
-      "version": "5.2.4",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-5.2.4.tgz",
-      "integrity": "sha512-GPnxUf7g8Mz0AUttKKcqaw0m2xZujwwzojkg3xUIvHrNFFF5/HH5549PfnE1jD7qkmnDFx5j3IPuNkwYHW6XvA==",
+      "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/client/package.json b/client/package.json
index 98092fa..0f25af2 100644
--- a/client/package.json
+++ b/client/package.json
@@ -16,7 +16,7 @@
     "@angular/cdk": "^5.2.0",
     "@angular/common": "^5.2.0",
     "@angular/compiler": "^5.2.0",
-    "@angular/core": "^5.2.0",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^5.2.0",
     "@angular/http": "^5.2.0",
     "@angular/material": "^5.2.0",
diff --git a/client/yarn.lock b/client/yarn.lock
index 62b515c..32dcf34 100644
--- a/client/yarn.lock
+++ b/client/yarn.lock
@@ -123,11 +123,11 @@
   dependencies:
     tslib "^1.7.1"
 
-"@angular/core@^5.2.0":
-  version "5.2.11"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-5.2.11.tgz#0e38fdf4fa038a3c168c72952682f2ee3721f1a3"
+"@angular/core@^11.0.5":
+  version "11.0.5"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-11.0.5.tgz#b8c448c3cd4f6dae7327cc1ba4ee2aa29c8dbc26"
   dependencies:
-    tslib "^1.7.1"
+    tslib "^2.0.0"
 
 "@angular/forms@^5.2.0":
   version "5.2.11"
@@ -6528,14 +6528,14 @@ tsickle@^0.27.2:
     source-map "^0.6.0"
     source-map-support "^0.5.0"
 
-tslib@^1.7.1:
-  version "1.8.0"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.8.0.tgz#dc604ebad64bcbf696d613da6c954aa0e7ea1eb6"
-
-tslib@^1.8.0, tslib@^1.8.1:
+tslib@^1.7.1, tslib@^1.8.0, tslib@^1.8.1:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.10.0.tgz#c3c19f95973fb0a62973fb09d90d961ee43e5c8a"
 
+tslib@^2.0.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
+
 tslint@~5.9.1:
   version "5.9.1"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.9.1.tgz#1255f87a3ff57eb0b0e1f0e610a8b4748046c9ae"