diff --git a/package.json b/package.json
index 36e666e..27d9c8a 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
   "devDependencies": {
     "ava": "^0.20.0",
     "coveralls": "^2.13.1",
-    "nyc": "^11.0.3",
+    "nyc": "^12.0.1",
     "spike-core": "^2.0.1",
     "standard": "^10.0.0"
   },