diff --git a/package.json b/package.json
index 2b50722..e5850d6 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "mongodb5": "npm:mongodb@^5.0.0",
     "mongodb6": "npm:mongodb@^6.0.0",
     "mongodb7": "npm:mongodb@^7.0.0",
-    "nyc": "^14.1.1",
+    "nyc": "^18.0.0",
     "ot-json1": "^1.0.1",
     "rich-text": "^4.1.0",
     "sharedb-mingo-memory": "^1.0.0 || ^2.0.0 || ^3.0.0",