diff --git a/package.json b/package.json
index fbc604a..9ce31e4 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   "devDependencies": {
     "ava": "1.1.0",
     "codecov": "3.1.0",
-    "nyc": "13.1.0",
+    "nyc": "15.0.1",
     "standard": "*"
   },
   "nyc": {