diff --git a/package.json b/package.json
index 35b9e08..0bc9846 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,7 @@
     "mocha-junit-reporter": "1.15.0",
     "mongoose-simple-random": "0.4.1",
     "nodemon": "1.15.0",
-    "nyc": "11.4.1"
+    "nyc": "11.6.0"
   },
   "apidoc": {
     "title": "API Documents for TEDxKasetsartU",