diff --git a/package.json b/package.json
index 73dd146..e9e97b4 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "chai-as-promised": "^7.1.1",
     "coveralls": "^2.11.15",
     "mocha": "^3.4.2",
-    "nyc": "^11.0.3"
+    "nyc": "^15.1.0"
   },
   "license": "MIT",
   "repository": {