diff --git a/package.json b/package.json
index 224c277..cbbce9c 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "coveralls": "^2.11.15",
     "husky": "^0.11.6",
     "md5-file": "^3.1.1",
-    "nyc": "^9.0.1",
+    "nyc": "^10.0.0",
     "postcss-color-gray": "^3.0.0",
     "postcss-import": "^8.2.0",
     "reshape-custom-elements": "^0.1.0",