diff --git a/package.json b/package.json
index 0379a3e..7152a19 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "rxjs": "^5.0.0",
     "systemjs": "^0.19.42",
     "warning": "^4.0.1",
-    "zone.js": "^0.7.4"
+    "zone.js": "^0.9.1"
   },
   "devDependencies": {
     "@angular/compiler": "^6.0.7",