diff --git a/node_modules/concordance/package.json b/node_modules/concordance/package.json
index 6c89014465..5a5e984f73 100644
--- a/node_modules/concordance/package.json
+++ b/node_modules/concordance/package.json
@@ -44,7 +44,7 @@
     "chalk": "^2.4.1",
     "codecov": "^3.1.0",
     "lodash.isequal": "^4.5.0",
-    "nyc": "^13.0.1",
+    "nyc": "^15.0.0",
     "pretty-format": "^23.6.0"
   },
   "as-i-preach": {