diff --git a/package.json b/package.json
index e99bdc8..8c3412e 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "coveralls": "^3.0.0",
     "eslint": "^5.0.0",
     "eslint-config-problems": "2.0.0",
-    "nyc": "^14.0.0",
+    "nyc": "^15.0.0",
     "postcss-import": "^12.0.0",
     "prettier": "~1.18.0",
     "sugarss": "^2.0.0",