diff --git a/package.json b/package.json
index 9bc9300..f405e9b 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   "devDependencies": {
     "browserify": "^13.0.0",
     "esmangle": "^1.0.1",
-    "nyc": "^8.4.0",
+    "nyc": "^10.0.0",
     "remark-cli": "^2.1.0",
     "remark-preset-wooorm": "^1.0.0",
     "tape": "^4.4.0",