diff --git a/package.json b/package.json
index 818c8a8..a7456d8 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "@fastify/caching": "^9.0.3",
     "@fastify/etag": "^6.1.0",
     "@types/node": "^26.1.1",
-    "c8": "^11.0.0",
+    "c8": "^12.0.0",
     "eslint": "^9.17.0",
     "fastify": "^5.0.0",
     "lefthook": "^2.1.9",