diff --git a/package.json b/package.json
index 2322578a1..9c859f062 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "rxjs": "^6.0.0",
     "ws": "^3.3.2",
     "xhr2": "^0.1.4",
-    "zone.js": "^0.8.0"
+    "zone.js": "^0.8.0 || ^0.9.0"
   },
   "optionalDependencies": {
     "bufferutil": "~3.0.0",
diff --git a/yarn.lock b/yarn.lock
index 010be29a0..d48d23942 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9117,7 +9117,7 @@ zip-stream@^1.2.0:
     lodash "^4.8.0"
     readable-stream "^2.0.0"
 
-zone.js@^0.8.0:
-  version "0.8.29"
-  resolved "https://registry.yarnpkg.com/zone.js/-/zone.js-0.8.29.tgz#8dce92aa0dd553b50bc5bfbb90af9986ad845a12"
-  integrity sha512-mla2acNCMkWXBD+c+yeUrBUrzOxYMNFdQ6FGfigGGtEVBPJx07BQeJekjt9DmH1FtZek4E9rE1eRR9qQpxACOQ==
+"zone.js@^0.8.0 || ^0.9.0":
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/zone.js/-/zone.js-0.9.1.tgz#e37c6e5c54c13fae4de26b5ffe8d8e9212da6d9b"
+  integrity sha512-GkPiJL8jifSrKReKaTZ5jkhrMEgXbXYC+IPo1iquBjayRa0q86w3Dipjn8b415jpitMExe9lV8iTsv8tk3DGag==