diff --git a/package-lock.json b/package-lock.json
index e3d7053..1206ad9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -164,11 +164,18 @@
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-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-5.2.6.tgz",
-      "integrity": "sha512-BOkF7RM4VcqfIlQeOz17FucfocUmyZBsGIWxVSggeCBz2pQDyOUJ1IqrDh5c4yldW9G4Gjhhn/AkPykvPevI3w==",
+      "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": {
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+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+          "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
+        }
       }
     },
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@@ -716,6 +723,7 @@
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       "integrity": "sha1-u13KOCu5TwXhUZQ3PRb9O6HKEQ0=",
+      "optional": true,
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@@ -1713,7 +1721,8 @@
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       "integrity": "sha1-JrOIXRD6E9t/wBquOquHAZngEkw=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -2412,7 +2421,8 @@
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-      "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4="
+      "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
+      "optional": true
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@@ -2998,7 +3008,8 @@
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       "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
-      "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o="
+      "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
+      "optional": true
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@@ -4122,7 +4133,8 @@
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -4165,7 +4177,8 @@
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -4178,6 +4191,7 @@
         "block-stream": {
           "version": "0.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -4185,6 +4199,7 @@
         "boom": {
           "version": "2.10.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -4192,6 +4207,7 @@
         "brace-expansion": {
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           "bundled": true,
+          "optional": true,
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@@ -4199,7 +4215,8 @@
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           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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           "version": "0.12.0",
@@ -4213,30 +4230,36 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
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           "version": "1.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "delayed-stream": "1.0.0"
           }
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         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
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           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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-          "bundled": true
+          "bundled": true,
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         "cryptiles": {
           "version": "2.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -4271,7 +4294,8 @@
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+          "bundled": true,
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@@ -4298,7 +4322,8 @@
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+          "bundled": true,
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@@ -4317,11 +4342,13 @@
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+          "bundled": true,
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         "fstream": {
           "version": "1.0.11",
           "bundled": true,
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@@ -4372,6 +4399,7 @@
         "glob": {
           "version": "7.1.2",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -4383,7 +4411,8 @@
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+          "bundled": true,
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@@ -4407,6 +4436,7 @@
         "hawk": {
           "version": "3.1.3",
           "bundled": true,
+          "optional": true,
           "requires": {
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             "cryptiles": "2.0.5",
@@ -4416,7 +4446,8 @@
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         "hoek": {
           "version": "2.16.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -4431,6 +4462,7 @@
         "inflight": {
           "version": "1.0.6",
           "bundled": true,
+          "optional": true,
           "requires": {
             "once": "1.4.0",
             "wrappy": "1.0.2"
@@ -4438,7 +4470,8 @@
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         "inherits": {
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+          "bundled": true,
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@@ -4448,6 +4481,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -4459,7 +4493,8 @@
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+          "bundled": true,
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@@ -4522,11 +4557,13 @@
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         "mime-db": {
           "version": "1.27.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "mime-types": {
           "version": "2.1.15",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -4534,17 +4571,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -4594,7 +4634,8 @@
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+          "bundled": true,
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@@ -4609,6 +4650,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
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@@ -4634,7 +4676,8 @@
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@@ -4643,7 +4686,8 @@
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@@ -4676,6 +4720,7 @@
         "readable-stream": {
           "version": "2.2.9",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -4718,13 +4763,15 @@
         "rimraf": {
           "version": "2.6.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "glob": "7.1.2"
           }
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         "safe-buffer": {
           "version": "5.0.1",
-          "bundled": true
+          "bundled": true,
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@@ -4744,6 +4791,7 @@
         "sntp": {
           "version": "1.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -4774,6 +4822,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
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@@ -4783,6 +4832,7 @@
         "string_decoder": {
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           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -4795,6 +4845,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
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@@ -4807,6 +4858,7 @@
         "tar": {
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           "bundled": true,
+          "optional": true,
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@@ -4856,7 +4908,8 @@
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+          "bundled": true,
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@@ -4881,7 +4934,8 @@
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+          "bundled": true,
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       "integrity": "sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=",
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       "integrity": "sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=",
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@@ -5289,7 +5345,8 @@
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-      "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk="
+      "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
+      "optional": true
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@@ -5564,6 +5621,7 @@
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       "integrity": "sha1-zBzjjkU7+YSg93AtLdWcc9CBKEo=",
       "dev": true,
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@@ -5611,6 +5669,7 @@
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@@ -5620,7 +5679,8 @@
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@@ -6747,13 +6807,15 @@
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       "integrity": "sha1-UaGp50SOy9Ms2lRCFnW7IbwJPaY=",
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           "integrity": "sha1-/iZaIYrGpXz+hUkn6dBMGYJe3es=",
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@@ -7766,7 +7830,8 @@
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+          "integrity": "sha512-QLg82fGkfnJ/4iy1xZ81/9SIJiq1NGFUMGs6ParyjBZr6jW2Ufj/snDqTHixNlHdPNwN2RLVD0Pi3igeK9+JfA==",
+          "optional": true
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@@ -7960,7 +8025,8 @@
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-          "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4="
+          "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
+          "optional": true
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           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+          "optional": true,
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-          "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc="
+          "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
+          "optional": true
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-      "dev": true
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       "integrity": "sha1-z1mU4v0mjQD1zw+nZ6CBae2wfsA=",
       "dev": true,
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-      "dev": true
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+      "optional": true,
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-      "dev": true
+      "dev": true,
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@@ -10423,6 +10496,7 @@
       "dependencies": {
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           "version": "github:pemrouz/buble#4e639aeeb64712ac95dc30a52750d1ee4432c9c8",
+          "from": "github:pemrouz/buble#4e639aeeb64712ac95dc30a52750d1ee4432c9c8",
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@@ -10857,13 +10931,15 @@
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-      "dev": true
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       "integrity": "sha1-1275EnyyPCJZ7bHoNJwujV4tdME=",
       "dev": true,
+      "optional": true,
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@@ -11100,6 +11176,7 @@
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       "integrity": "sha1-W4t/x8jzQcU+0FbpKbe/Tei6e1o=",
       "dev": true,
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@@ -11110,6 +11187,7 @@
       "resolved": "https://registry.npmjs.org/socks-proxy-agent/-/socks-proxy-agent-2.1.1.tgz",
       "integrity": "sha512-sFtmYqdUK5dAMh85H0LEVFUCO7OhJJe1/z2x/Z6mxp3s7/QPf1RkZmpZy+BpuU0bEjcV9npqKjq9Y3kwFUjnxw==",
       "dev": true,
+      "optional": true,
       "requires": {
         "agent-base": "2.1.1",
         "extend": "3.0.1",
@@ -12078,6 +12156,7 @@
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
       "dev": true,
+      "optional": true,
       "requires": {
         "prelude-ls": "1.1.2"
       }
@@ -12196,7 +12275,8 @@
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.7.0.tgz",
       "integrity": "sha1-a7rwh3UA02vjTsqlhODbn+8DUgk=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "underscore.string": {
       "version": "3.3.4",
@@ -13586,6 +13666,7 @@
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.2.tgz",
       "integrity": "sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==",
+      "optional": true,
       "requires": {
         "string-width": "1.0.2"
       }
diff --git a/package.json b/package.json
index a4fdac2..03149ae 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "@angular/common": "^5.2.0",
     "@angular/compiler": "^5.2.0",
     "@angular/compiler-cli": "^5.2.0",
-    "@angular/core": "^5.2.0",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^5.2.0",
     "@angular/http": "^5.2.0",
     "@angular/platform-browser": "^5.2.0",