diff --git a/package-lock.json b/package-lock.json
index 7edc44c..6f6fcc9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -974,11 +974,18 @@
       }
     },
     "@angular/core": {
-      "version": "8.2.2",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-8.2.2.tgz",
-      "integrity": "sha512-glQLJ3aeRWHMsN9QeJYis5FVdCg0lBU2s9aFX9i6WvVLscYmGoBk+TKsgO+uJjLnUUgsCPLRLzde02IJEQzCGw==",
+      "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/fire": {
@@ -1397,6 +1404,11 @@
         "webpack-sources": "1.3.0"
       }
     },
+    "@pdftron/webviewer": {
+      "version": "6.3.6",
+      "resolved": "https://registry.npmjs.org/@pdftron/webviewer/-/webviewer-6.3.6.tgz",
+      "integrity": "sha512-ZxeW3r0H+5H0mRdu40e5uOjQaXOhBkOvvULPMKtPp4TEqARzkbQM5LIm4iAlBjokD1a3AfDK9gsb07a6FNVN8g=="
+    },
     "@protobufjs/aspromise": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/@protobufjs/aspromise/-/aspromise-1.1.2.tgz",
@@ -2857,6 +2869,11 @@
         }
       }
     },
+    "classlist.js": {
+      "version": "1.1.20150312",
+      "resolved": "https://registry.npmjs.org/classlist.js/-/classlist.js-1.1.20150312.tgz",
+      "integrity": "sha512-eR8yB970+yGslcTnJnROX2icsMa8v/KVLv/sgv3NhSvZSHgam64XNSF2TyJnKIfsnTFJBcTdrIneYqUIrvxLpg=="
+    },
     "clean-css": {
       "version": "4.2.1",
       "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-4.2.1.tgz",
@@ -4269,6 +4286,11 @@
         }
       }
     },
+    "file-saver": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/file-saver/-/file-saver-2.0.5.tgz",
+      "integrity": "sha512-P9bmyZ3h/PRG+Nzga+rbdI4OEpNDzAVyy74uVO9ATgzLK6VtAsYybF/+TOCvrc0MO793d6+42lLyZTw7/ArVzA=="
+    },
     "fileset": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/fileset/-/fileset-2.0.3.tgz",
@@ -11784,6 +11806,11 @@
         "minimalistic-assert": "^1.0.0"
       }
     },
+    "web-animations-js": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/web-animations-js/-/web-animations-js-2.3.2.tgz",
+      "integrity": "sha512-TOMFWtQdxzjWp8qx4DAraTWTsdhxVSiWa6NkPFSaPtZ1diKUxTn4yTix73A1euG1WbSOMMPcY51cnjTIHrGtDA=="
+    },
     "webdriver-js-extender": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/webdriver-js-extender/-/webdriver-js-extender-2.1.0.tgz",
diff --git a/package.json b/package.json
index 9f9c8ee..5c29748 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "@angular/animations": "~8.2.0",
     "@angular/common": "~8.2.0",
     "@angular/compiler": "~8.2.0",
-    "@angular/core": "~8.2.0",
+    "@angular/core": "~11.0.5",
     "@angular/fire": "^5.2.1",
     "@angular/forms": "~8.2.0",
     "@angular/platform-browser": "~8.2.0",