diff --git a/package.json b/package.json
index f110e55..9b1a4f0 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "eslint-plugin-import": "^2.14.0",
     "mocha": "^5.0.0",
     "nyc": "^12.0.1",
-    "rollup": "^0.66.0",
+    "rollup": "^0.66.1",
     "rollup-plugin-babel": "^4.0.2"
   }
 }