diff --git a/package.json b/package.json
index b5a65a6..8863d4e 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "@fastify/cookie": "^11.0.1",
     "@fastify/rate-limit": "^11.0.0",
     "@types/node": "^26.0.1",
-    "c8": "^11.0.0",
+    "c8": "^12.0.0",
     "eslint": "^9.17.0",
     "fastify": "^5.0.0",
     "neostandard": "^0.13.0",