diff --git a/package.json b/package.json
index 86cf960..81920e2 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
   "devDependencies": {
     "@tsconfig/node10": "^1.0.9",
     "@types/pg": "^8.11.4",
-    "c8": "^10.1.2",
+    "c8": "^11.0.0",
     "fastify": "^5.0.0",
     "neostandard": "^0.12.0",
     "pg": "^8.11.3",