diff --git a/node/url_shortener/public/package-lock.json b/node/url_shortener/public/package-lock.json
index 6247887..937bd00 100644
--- a/node/url_shortener/public/package-lock.json
+++ b/node/url_shortener/public/package-lock.json
@@ -507,11 +507,18 @@
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-      "version": "8.2.14",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-8.2.14.tgz",
-      "integrity": "sha512-zeePkigi+hPh3rN7yoNENG/YUBUsIvUXdxx+AZq+QPaFeKEA2FBSrKn36ojHFrdJUjKzl0lPMEiGC2b6a6bo6g==",
+      "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": {
@@ -528,14 +535,6 @@
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       "dev": true
     },
-    "@angular/material": {
-      "version": "8.2.3",
-      "resolved": "https://registry.npmjs.org/@angular/material/-/material-8.2.3.tgz",
-      "integrity": "sha512-SOczkIaqes+r+9XF/UUiokidfFKBpHkOPIaFK857sFD0FBNPvPEpOr5oHKCG3feERRwAFqHS7Wo2ohVEWypb5A==",
-      "requires": {
-        "tslib": "^1.7.1"
-      }
-    },
     "@angular/platform-browser": {
       "version": "8.2.14",
       "resolved": "https://registry.npmjs.org/@angular/platform-browser/-/platform-browser-8.2.14.tgz",
@@ -5018,11 +5017,6 @@
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       "dev": true
     },
-    "hammerjs": {
-      "version": "2.0.8",
-      "resolved": "https://registry.npmjs.org/hammerjs/-/hammerjs-2.0.8.tgz",
-      "integrity": "sha1-BO93hiz/K7edMPdpIJWTAiK/YPE="
-    },
     "handle-thing": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/handle-thing/-/handle-thing-2.0.1.tgz",
diff --git a/node/url_shortener/public/package.json b/node/url_shortener/public/package.json
index 001f7c2..3ffc9ae 100644
--- a/node/url_shortener/public/package.json
+++ b/node/url_shortener/public/package.json
@@ -15,7 +15,7 @@
     "@angular/cdk": "~8.2.3",
     "@angular/common": "~8.2.14",
     "@angular/compiler": "~8.2.14",
-    "@angular/core": "~8.2.14",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~8.2.14",
     "@angular/platform-browser": "~8.2.14",
     "@angular/platform-browser-dynamic": "~8.2.14",