diff --git a/package-lock.json b/package-lock.json
index 9d20314..2cd631a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -105,7 +105,8 @@
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@@ -125,7 +126,8 @@
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@@ -158,6 +160,7 @@
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@@ -182,13 +185,15 @@
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@@ -231,6 +239,7 @@
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           "integrity": "sha1-muzZJRFHcvPZW2WmCruPfBj7rOE=",
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@@ -273,7 +282,7 @@
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-              "resolved": "http://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
+              "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
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@@ -348,7 +357,8 @@
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-          "dev": true
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@@ -852,7 +864,7 @@
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-          "resolved": "http://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz",
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@@ -873,7 +885,7 @@
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
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@@ -1000,12 +1012,20 @@
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-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-7.0.1.tgz",
-      "integrity": "sha512-u/3Xx+tIddVC1wANjK1F102uG8fQrNd4Y9nlz3vtKcnFX66b2SQlnjWd18L8FmzYtzaI44RxSWWTPQB0eTx1xw==",
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+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
       "dev": true,
       "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==",
+          "dev": true
+        }
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       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
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@@ -5868,7 +5889,7 @@
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-          "resolved": "http://registry.npmjs.org/expand-range/-/expand-range-0.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/expand-range/-/expand-range-0.1.1.tgz",
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@@ -6705,7 +6726,8 @@
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           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -6726,12 +6748,14 @@
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           "version": "1.0.0",
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-          "dev": true
+          "dev": true,
+          "optional": true
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         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -6746,17 +6770,20 @@
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           "version": "1.1.0",
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-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
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@@ -6873,7 +6900,8 @@
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           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -6885,6 +6913,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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           }
@@ -6899,6 +6928,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -6906,12 +6936,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
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             "yallist": "3.0.2"
@@ -6930,6 +6962,7 @@
           "version": "0.5.1",
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           "dev": true,
+          "optional": true,
           "requires": {
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@@ -7010,7 +7043,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "4.1.1",
@@ -7022,6 +7056,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -7107,7 +7142,8 @@
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           "version": "5.1.1",
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-          "dev": true
+          "dev": true,
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@@ -7143,6 +7179,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -7162,6 +7199,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -7205,12 +7243,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
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@@ -10152,7 +10192,7 @@
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           "version": "1.1.0",
-          "resolved": "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
           "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=",
           "dev": true
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@@ -10362,7 +10402,7 @@
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         "onetime": {
           "version": "1.1.0",
-          "resolved": "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
           "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=",
           "dev": true
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@@ -10418,7 +10458,8 @@
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       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -12154,7 +12195,7 @@
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         "onetime": {
           "version": "1.1.0",
-          "resolved": "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
           "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=",
           "dev": true
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@@ -14896,7 +14937,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
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@@ -16040,7 +16081,7 @@
       "dependencies": {
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
           "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
           "dev": true
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@@ -18047,13 +18088,13 @@
       "dependencies": {
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-          "resolved": "http://registry.npmjs.org/async/-/async-1.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/async/-/async-1.0.0.tgz",
           "integrity": "sha1-+PwEyjoTeErenhZBr5hXjPvWR6k=",
           "dev": true
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         "colors": {
           "version": "1.0.3",
-          "resolved": "http://registry.npmjs.org/colors/-/colors-1.0.3.tgz",
+          "resolved": "https://registry.npmjs.org/colors/-/colors-1.0.3.tgz",
           "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=",
           "dev": true
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diff --git a/package.json b/package.json
index 80d5d3c..4d72d99 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
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     "@angular/compiler": "7.0.1",
     "@angular/compiler-cli": "7.0.1",
-    "@angular/core": "7.0.1",
+    "@angular/core": "11.0.5",
     "@angular/forms": "7.0.1",
     "@angular/http": "7.0.1",
     "@angular/language-service": "7.0.1",