diff --git a/package.json b/package.json
index 58ed437..1106be6 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "nyc": "^11.0.2",
     "rollup": "^0.50.0",
     "rollup-plugin-babel": "^2.7.1",
-    "window": "^3.1.1",
+    "window": "^4.2.1",
     "xo": "^0.18.2"
   }
 }