diff --git a/package.json b/package.json
index 9652be77..daea5ed5 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
   "devDependencies": {
     "@eslint/js": "^10.0.1",
     "@stylistic/eslint-plugin": "^5.10.0",
-    "c8": "^11.0.0",
+    "c8": "^12.0.0",
     "chai": "^6.2.0",
     "eslint": "^10.5.0",
     "globals": "^17.7.0",