diff --git a/src/package.json b/src/package.json
index d8d792b22..6fb0b9c13 100644
--- a/src/package.json
+++ b/src/package.json
@@ -69,7 +69,7 @@
   },
   "devDependencies": {
     "mocha": "5.2.0",
-    "nyc": "^12.0.2",
+    "nyc": "14.1.0",
     "supertest": "3.0.0",
     "wd": "1.11.1"
   },