diff --git a/package.json b/package.json
index 92aaf14b..683d5e17 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "markdown-doctest": "^0.9.1",
     "mocha": "^3.5.3",
     "nyc": "^11.3.0",
-    "rollup": "^0.50.0",
+    "rollup": "^0.51.0",
     "semantic-release": "^9.1.0"
   },
   "dependencies": {