diff --git a/package.json b/package.json
index 6443128..f1217ac 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
   },
   "devDependencies": {
     "mocha": "^5.2.0",
-    "nyc": "^12.0.1",
+    "nyc": "^13.3.0",
     "shelljs": "^0.8.1",
     "showdown": "^1.8.6"
   }