diff --git a/package.json b/package.json
index 7caa5a2..6420d2e 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "coveralls": "^2.11.15",
     "eslint-config-xo-lukechilds": "^1.0.0",
     "nyc": "^11.0.2",
-    "rollup": "^0.42.0",
+    "rollup": "^0.49.3",
     "rollup-plugin-babel": "^2.7.1",
     "window": "^3.1.1",
     "xo": "^0.18.2"