diff --git a/package.json b/package.json
index 0cd49b4..db685d3 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "eslint-config-onelint": "^3.0.0",
     "express": "^4.16.3",
     "mocha": "^2.2.5",
-    "nyc": "^11.6.0",
+    "nyc": "^12.0.1",
     "pem": "^1.12.5",
     "request": "^2.53.0",
     "semver": "^5.0.1",