diff --git a/package.json b/package.json
index ce0b661..3c1784b 100644
--- a/package.json
+++ b/package.json
@@ -33,6 +33,6 @@
     "eslint": "^5.0.0",
     "mocha": "^5.0.0",
     "mocha-lcov-reporter": "^1.3.0",
-    "nyc": "^12.0.1"
+    "nyc": "^13.2.0"
   }
 }