diff --git a/package.json b/package.json
index ae8b3343..49d81dbf 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "@types/node": "^22.13.10",
     "@typescript-eslint/eslint-plugin": "^4.0.0",
     "@typescript-eslint/parser": "^4.0.0",
-    "c8": "^10.1.3",
+    "c8": "^12.0.0",
     "chai": "^5.2.0",
     "chalk": "^5.4.1",
     "cross-env": "^7.0.2",