diff --git a/package.json b/package.json
index 9985a72..b8a02d0 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
   "devDependencies": {
     "@types/connect": "^3.4.38",
     "@types/node": "^25.0.3",
-    "c8": "^10.1.3",
+    "c8": "^11.0.0",
     "cors": "^2.8.5",
     "eslint": "^9.17.0",
     "fastify": "^5.0.0",