diff --git a/package.json b/package.json
index 9935c38..3ab3167 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "gulp": "^3.9.1",
     "gulp-babel": "^7.0.0",
     "gulp-sourcemaps": "^2.1.1",
-    "nyc": "^11.0.2",
+    "nyc": "^13.3.0",
     "pre-commit": "^1.2.2",
     "pre-push": "^0.1.1",
     "source-map-support": "^0.5.0",