diff --git a/package.json b/package.json
index e8030ce..2d848e7 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "semver": "^7.5.4"
   },
   "devDependencies": {
-    "c8": "^8.0.1",
+    "c8": "^10.1.3",
     "eslint": "^9.17.0",
     "neostandard": "^0.11.9"
   }