diff --git a/package.json b/package.json
index e72d3a10..54825ac9 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "supertest-as-promised": "^4.0.2",
     "jsdoc-to-markdown": "^3.0.0",
     "markdown-doctest": "^0.9.1",
-    "rollup": "^0.50.0",
+    "rollup": "^0.51.1",
     "nyc": "^11.3.0"
   },
   "contributors": [