diff --git a/package.json b/package.json
index 4632ef5..79f40ae 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "chai": "^4.1.2",
     "mocha": "^4.0.1",
-    "nyc": "^11.2.1"
+    "nyc": "^12.0.1"
   },
   "devDependencies": {
     "eslint": "^4.9.0",