diff --git a/package.json b/package.json
index 0069db7..5e1bfeb 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@angular/animations": "^4.0.1",
     "@angular/common": "^4.0.0",
     "@angular/compiler": "^4.0.0",
-    "@angular/core": "^4.0.0",
+    "@angular/core": "^11.0.5",
     "@angular/forms": "^4.0.0",
     "@angular/http": "^4.0.0",
     "@angular/material": "^2.0.0-beta.2",
diff --git a/yarn.lock b/yarn.lock
index fc4d9ee..f1c99f0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -86,9 +86,11 @@
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/@angular/compiler/-/compiler-4.0.1.tgz#15721edb148167a2d83b6f9324817e658eac8280"
 
-"@angular/core@^4.0.0":
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-4.0.1.tgz#0b110a001012076ea696460ccd922707bcdf51ba"
+"@angular/core@^11.0.5":
+  version "11.0.5"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-11.0.5.tgz#b8c448c3cd4f6dae7327cc1ba4ee2aa29c8dbc26"
+  dependencies:
+    tslib "^2.0.0"
 
 "@angular/forms@^4.0.0":
   version "4.0.1"
@@ -4736,6 +4738,10 @@ tsickle@^0.21.0:
     source-map "^0.5.6"
     source-map-support "^0.4.2"
 
+tslib@^2.0.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
+
 tslint@^4.5.1:
   version "4.5.1"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-4.5.1.tgz#05356871bef23a434906734006fc188336ba824b"