diff --git a/package-lock.json b/package-lock.json
index 9409184..0d07252 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -412,11 +412,18 @@
       }
     },
     "@angular/core": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-6.1.0.tgz",
-      "integrity": "sha512-gWu9Q7q2+fhFC5dl/BvGW7Ha7NUJtK9wQLYQlfIMim4lKTOiM1/S0MYBVMrEq58ldMr9DnA35f5jGno3x6/v+g==",
+      "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": {
@@ -1846,16 +1853,6 @@
       "integrity": "sha1-aN/1++YMUes3cl6p4+0xDcwed24=",
       "dev": true
     },
-    "boostrap": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/boostrap/-/boostrap-2.0.0.tgz",
-      "integrity": "sha512-JEeFMOweKeGXEM9rt95eaVISOkluG9aKcl0jQCETOVH9jynCZxuBZe2oWgcWJpj5wqYWZl625SnW7OgHT2Ineg=="
-    },
-    "bootstrap": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.5.0.tgz",
-      "integrity": "sha512-Z93QoXvodoVslA+PWNdk23Hze4RBYIkpb5h8I2HY2Tu2h7A0LpAgLcyrhrSUyo2/Oxm2l1fRZPs1e5hnxnliXA=="
-    },
     "bowser": {
       "version": "2.5.4",
       "resolved": "https://registry.npmjs.org/bowser/-/bowser-2.5.4.tgz",
@@ -4825,7 +4822,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -4843,11 +4841,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -4860,15 +4860,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -4971,7 +4974,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4981,6 +4985,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4993,17 +4998,20 @@
         "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
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -5020,6 +5028,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -5092,7 +5101,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -5102,6 +5112,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -5177,7 +5188,8 @@
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -5207,6 +5219,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -5224,6 +5237,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -5262,11 +5276,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
@@ -10000,7 +10016,7 @@
           "dependencies": {
             "get-stream": {
               "version": "3.0.0",
-              "resolved": "http://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
+              "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
               "integrity": "sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ="
             }
           }
@@ -10313,7 +10329,7 @@
           "dependencies": {
             "get-stream": {
               "version": "3.0.0",
-              "resolved": "http://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
+              "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
               "integrity": "sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ="
             }
           }
diff --git a/package.json b/package.json
index 4af54bf..d760c49 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "@angular/common": "6.1.0",
     "@angular/compiler": "6.1.0",
     "@angular/compiler-cli": "^6.1.0",
-    "@angular/core": "6.1.0",
+    "@angular/core": "11.0.5",
     "@angular/forms": "6.1.0",
     "@angular/http": "6.1.0",
     "@angular/platform-browser": "6.1.0",