diff --git a/package.json b/package.json
index c7cdb6b..3deedc0 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "coveralls": "^3.0.0",
     "eslint": "^4.2.0",
     "eslint-config-problems": "0.0.2",
-    "nyc": "^11.0.2",
+    "nyc": "^12.0.1",
     "postcss-import": "^11.0.0",
     "prettier": "1.13.0",
     "sugarss": "^1.0.0",