diff --git a/package.json b/package.json
index 775dc4e..17dc41b 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "babel-preset-env": "^1.6.1",
     "coveralls": "^3.0.0",
-    "greenkeeper-lockfile": "^1.14.0",
+    "greenkeeper-lockfile": "^1.15.1",
     "gzip-size": "^4.1.0",
     "jest": "^22.4.2",
     "pretty-bytes": "^5.0.0",