diff --git a/package.json b/package.json
index 286cdb7..4986d66 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "@typescript-eslint/eslint-plugin": "^6.4.0",
     "@typescript-eslint/parser": "^6.4.0",
     "ava": "^5.3.1",
-    "c8": "^8.0.0",
+    "c8": "^9.0.0",
     "fastify": "^4.4.0",
     "graphql": "^16.8.0",
     "mercurius": "^13.0.0",