diff --git a/demo/package.json b/demo/package.json
index 13b0041..b71cd31 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -38,7 +38,7 @@
     "zone.js": "^0.8.26"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.6.0",
+    "@angular-devkit/build-angular": "~0.8.4",
     "@angular/cli": "^6.1.3",
     "@angular/compiler-cli": "^6.1.2",
     "@angular/language-service": "^6.1.2",