diff --git a/package.json b/package.json
index a9350d5..fe8024b 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "babel-plugin-transform-object-assign": "^6.22.0",
     "babel-polyfill": "^6.23.0",
     "babel-preset-es2015": "^6.24.1",
-    "custom-event-polyfill": "^0.3.0",
+    "custom-event-polyfill": "^1.0.0",
     "es6-promise": "^4.1.0",
     "fullscreen-api-polyfill": "^1.1.2"
   },