diff --git a/dev/package.json b/dev/package.json
index fb6131f..0e1e692 100644
--- a/dev/package.json
+++ b/dev/package.json
@@ -16,7 +16,7 @@
     "@angular/common": "5.0.3",
     "@angular/compiler": "5.0.3",
     "@angular/compiler-cli": "5.0.3",
-    "@angular/core": "5.0.3",
+    "@angular/core": "11.0.5",
     "@angular/forms": "5.0.3",
     "@angular/http": "5.0.3",
     "@angular/platform-browser": "5.0.3",
diff --git a/dev/yarn.lock b/dev/yarn.lock
index 1a28d23..00e83d3 100644
--- a/dev/yarn.lock
+++ b/dev/yarn.lock
@@ -38,11 +38,11 @@
   dependencies:
     tslib "^1.7.1"
 
-"@angular/core@5.0.3":
-  version "5.0.3"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-5.0.3.tgz#2566400f6713bf1c39f7e00bc03a63280a87e66b"
+"@angular/core@11.0.5":
+  version "11.0.5"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-11.0.5.tgz#b8c448c3cd4f6dae7327cc1ba4ee2aa29c8dbc26"
   dependencies:
-    tslib "^1.7.1"
+    tslib "^2.0.0"
 
 "@angular/forms@5.0.3":
   version "5.0.3"
@@ -3217,6 +3217,10 @@ tslib@^1.0.0, tslib@^1.7.1, tslib@^1.8.0, tslib@^1.8.1:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.0.tgz#e37a86fda8cbbaf23a057f473c9f4dc64e5fc2e8"
 
+tslib@^2.0.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
+
 tslint-eslint-rules@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/tslint-eslint-rules/-/tslint-eslint-rules-4.1.1.tgz#7c30e7882f26bc276bff91d2384975c69daf88ba"