diff --git a/package.json b/package.json
index 0f72efc..63e810f 100644
--- a/package.json
+++ b/package.json
@@ -149,7 +149,7 @@
     "@angular-devkit/architect": "~0.13.9",
     "@angular-devkit/build-angular": "~0.13.9",
     "@angular-devkit/build-ng-packagr": "~0.13.9",
-    "@angular-devkit/core": "~7.3.9",
+    "@angular-devkit/core": "~9.0.6",
     "@angular-devkit/schematics": "~7.3.9",
     "@angular/cli": "~7.3.9",
     "@angular/compiler": "~7.2.15",