diff --git a/package-lock.json b/package-lock.json
index 3425b96..9284c37 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -91,7 +91,7 @@
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-          "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.5.6.tgz",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.6.tgz",
           "integrity": "sha1-dc449SvwczxafwwRjYEzSiu19BI=",
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@@ -426,7 +426,7 @@
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-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
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@@ -527,11 +527,18 @@
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-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-7.0.4.tgz",
-      "integrity": "sha512-17SSmCz1wQoZKnVHF/T8UkWYPpDm5kPyoc1okkTTv8ZA2EAMMuZFFnRSAxEL5i7mNB9z5CvRqF2tRx/DbgbIRA==",
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
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-        "tslib": "^1.9.0"
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
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+        }
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@@ -1317,7 +1324,7 @@
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-      "resolved": "http://registry.npmjs.org/async/-/async-1.5.2.tgz",
+      "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
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-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
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@@ -2745,7 +2752,7 @@
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-              "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+              "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
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@@ -3539,7 +3546,7 @@
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-      "resolved": "http://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
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@@ -3636,7 +3643,7 @@
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-      "resolved": "http://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
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@@ -3809,7 +3816,8 @@
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@@ -3830,12 +3838,14 @@
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+          "dev": true,
+          "optional": true
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@@ -3850,17 +3860,20 @@
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+          "dev": true,
+          "optional": true
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           "version": "0.0.1",
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-          "dev": true
+          "dev": true,
+          "optional": true
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+          "dev": true,
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@@ -3977,7 +3990,8 @@
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           "version": "2.0.3",
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-          "dev": true
+          "dev": true,
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@@ -3989,6 +4003,7 @@
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@@ -4003,6 +4018,7 @@
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+          "optional": true,
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@@ -4010,12 +4026,14 @@
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           "version": "0.0.8",
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-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "2.2.4",
           "bundled": true,
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@@ -4034,6 +4052,7 @@
           "version": "0.5.1",
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           "dev": true,
+          "optional": true,
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@@ -4114,7 +4133,8 @@
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-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -4126,6 +4146,7 @@
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@@ -4211,7 +4232,8 @@
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+          "dev": true,
+          "optional": true
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@@ -4247,6 +4269,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -4266,6 +4289,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -4309,12 +4333,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "yallist": {
           "version": "3.0.2",
           "bundled": true,
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+          "dev": true,
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@@ -4323,6 +4349,7 @@
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       "integrity": "sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=",
       "dev": true,
+      "optional": true,
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@@ -4366,7 +4393,8 @@
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       "integrity": "sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -5297,7 +5325,8 @@
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       "integrity": "sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -5729,13 +5758,13 @@
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-          "resolved": "http://registry.npmjs.org/core-js/-/core-js-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.3.0.tgz",
           "integrity": "sha1-+rg/uwstjchfpjbEudNMdUIMbWU=",
           "dev": true
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         "es6-promise": {
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-          "resolved": "http://registry.npmjs.org/es6-promise/-/es6-promise-3.0.2.tgz",
+          "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-3.0.2.tgz",
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@@ -5951,6 +5980,7 @@
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       "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
       "dev": true,
+      "optional": true,
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@@ -5961,9 +5991,10 @@
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         "pify": {
           "version": "2.3.0",
-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -6146,7 +6177,8 @@
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       "resolved": "https://registry.npmjs.org/map-obj/-/map-obj-1.0.1.tgz",
       "integrity": "sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -6519,7 +6551,7 @@
       "dependencies": {
         "semver": {
           "version": "5.3.0",
-          "resolved": "http://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
           "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8=",
           "dev": true,
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@@ -6624,7 +6656,7 @@
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         "chalk": {
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-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
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@@ -7007,7 +7039,7 @@
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     "os-locale": {
       "version": "1.4.0",
-      "resolved": "http://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
       "integrity": "sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=",
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@@ -7443,7 +7475,7 @@
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-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
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@@ -7491,7 +7523,7 @@
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-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
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@@ -7709,7 +7741,7 @@
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-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
           "dev": true
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@@ -7720,6 +7752,7 @@
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       "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
       "dev": true,
+      "optional": true,
       "requires": {
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@@ -7731,6 +7764,7 @@
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           "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
           "dev": true,
+          "optional": true,
           "requires": {
             "graceful-fs": "^4.1.2",
             "pify": "^2.0.0",
@@ -7739,9 +7773,10 @@
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         "pify": {
           "version": "2.3.0",
-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -7750,6 +7785,7 @@
       "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-1.0.1.tgz",
       "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
       "dev": true,
+      "optional": true,
       "requires": {
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         "read-pkg": "^1.0.0"
@@ -7760,6 +7796,7 @@
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           "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
           "dev": true,
+          "optional": true,
           "requires": {
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             "pinkie-promise": "^2.0.0"
@@ -7770,6 +7807,7 @@
           "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-2.1.0.tgz",
           "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
           "dev": true,
+          "optional": true,
           "requires": {
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           }
@@ -8131,7 +8169,7 @@
     },
     "sax": {
       "version": "0.5.8",
-      "resolved": "http://registry.npmjs.org/sax/-/sax-0.5.8.tgz",
+      "resolved": "https://registry.npmjs.org/sax/-/sax-0.5.8.tgz",
       "integrity": "sha1-1HLbIo6zMcJQaw6MFVJK25OdEsE=",
       "dev": true
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@@ -8964,7 +9002,7 @@
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     "strip-ansi": {
       "version": "3.0.1",
-      "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
       "dev": true,
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@@ -8976,6 +9014,7 @@
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       "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
       "dev": true,
+      "optional": true,
       "requires": {
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@@ -9782,7 +9821,7 @@
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-          "resolved": "http://registry.npmjs.org/lru-cache/-/lru-cache-2.2.4.tgz",
+          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-2.2.4.tgz",
           "integrity": "sha1-bGWGGb7PFAMdDQtZSxYELOTcBj0=",
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@@ -9958,7 +9997,7 @@
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-          "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
           "integrity": "sha1-66T12pwNyZneaAMti092FzZSA2s=",
           "dev": true,
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diff --git a/package.json b/package.json
index 5f6ba72..168da6f 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "@angular/animations": "^7.0.4",
     "@angular/common": "^7.0.4",
     "@angular/compiler": "^7.0.4",
-    "@angular/core": "^7.0.4",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^7.0.4",
     "@angular/http": "^7.0.4",
     "@angular/platform-browser": "^7.0.4",