diff --git a/package.json b/package.json
index a8e3f2c..ddff8c3 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "@opentelemetry/sdk-trace-base": "^2.0.0",
     "@opentelemetry/sdk-trace-node": "^2.2.0",
     "@types/node": "^26.0.0",
-    "c8": "^11.0.0",
+    "c8": "^12.0.0",
     "cross-env": "^10.0.0",
     "eslint": "^9.16.0",
     "fastify": "^5.1.0",