diff --git a/package-lock.json b/package-lock.json
index 56ae0e7..e9a1b3b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -358,11 +358,18 @@
       }
     },
     "@angular/core": {
-      "version": "6.0.9",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-6.0.9.tgz",
-      "integrity": "sha512-NeEUgymsR/tLvWeEAA4mGEX/S4hHbIo/2uwPGGAQAvzlk+pL7xqPoFSMKeqQahdTnWSmYa/2+X33OdJgXKKXyg==",
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-11.0.5.tgz",
+      "integrity": "sha512-XAXWQi7R3ucZXQwx9QK5jSKJeQyRJ53u2dQDpr7R5stzeCy1a5hrNOkZLg9zOTTPcth/6+FrOrRZP9SMdxtw3w==",
       "requires": {
-        "tslib": "1.9.1"
+        "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": {
@@ -838,6 +845,7 @@
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2",
         "longest": "1.0.1",
@@ -849,6 +857,7 @@
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
           "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
           "dev": true,
+          "optional": true,
           "requires": {
             "is-buffer": "1.1.6"
           }
@@ -867,6 +876,16 @@
       "integrity": "sha512-5bfYkuwN/gLeJETAvIeDBPhWRTnc7kNJz+Ry7WdH5ZSTQdjv7NOtTKPRpquPYn7ugAp+gTkYH4bCFjb/j8UYqw==",
       "requires": {
         "@angular/core": "6.0.9"
+      },
+      "dependencies": {
+        "@angular/core": {
+          "version": "6.0.9",
+          "resolved": "https://registry.npmjs.org/@angular/core/-/core-6.0.9.tgz",
+          "integrity": "sha512-NeEUgymsR/tLvWeEAA4mGEX/S4hHbIo/2uwPGGAQAvzlk+pL7xqPoFSMKeqQahdTnWSmYa/2+X33OdJgXKKXyg==",
+          "requires": {
+            "tslib": "^1.9.0"
+          }
+        }
       }
     },
     "ansi-html": {
@@ -3762,7 +3781,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -3783,12 +3803,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "1.0.0",
             "concat-map": "0.0.1"
@@ -3803,17 +3825,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -3930,7 +3955,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -3942,6 +3968,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -3956,6 +3983,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.11"
           }
@@ -3963,12 +3991,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.1.1",
             "yallist": "3.0.2"
@@ -3987,6 +4017,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4067,7 +4098,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4079,6 +4111,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1.0.2"
           }
@@ -4164,7 +4197,8 @@
         "safe-buffer": {
           "version": "5.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -4200,6 +4234,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -4219,6 +4254,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "2.1.1"
           }
@@ -4262,12 +4298,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -4276,6 +4314,7 @@
       "resolved": "https://registry.npmjs.org/fstream/-/fstream-1.0.11.tgz",
       "integrity": "sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=",
       "dev": true,
+      "optional": true,
       "requires": {
         "graceful-fs": "4.1.11",
         "inherits": "2.0.3",
@@ -6245,7 +6284,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "loose-envify": {
       "version": "1.4.0",
@@ -6711,6 +6751,7 @@
           "resolved": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz",
           "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
           "dev": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -6772,7 +6813,8 @@
           "version": "2.16.3",
           "resolved": "https://registry.npmjs.org/hoek/-/hoek-2.16.3.tgz",
           "integrity": "sha1-ILt0A9POo5jpHcRxCo/xuCdKJe0=",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "http-signature": {
           "version": "1.1.1",
diff --git a/package.json b/package.json
index 71a5551..d10e03f 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "@angular/animations": "^6.0.9",
     "@angular/common": "^6.0.9",
     "@angular/compiler": "^6.0.9",
-    "@angular/core": "^6.0.9",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^6.0.9",
     "@angular/http": "^6.0.9",
     "@angular/platform-browser": "^6.0.9",