diff --git a/package.json b/package.json
index 89045b4..419b2d2 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "markdownlint-cli": "^0.18.0",
     "mocha": "^6.2.1",
     "mocha-steps": "^1.3.0",
-    "nyc": "^14.1.1",
+    "nyc": "^15.1.0",
     "prettier": "^1.18.2",
     "promise-readable": "^5.0.3",
     "promise-writable": "^5.0.3",