diff --git a/package.json b/package.json
index ed37ac0..2ed1be3 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "mocha": "^5.0.2",
     "mocha-junit-reporter": "^1.23.1",
     "normalize-newline": "^3.0.0",
-    "nyc": "^11.4.1",
+    "nyc": "^15.0.0",
     "replace-ext": "^1.0.0",
     "rimraf": "^3.0.0",
     "standard": "^14.3.1"