diff --git a/package.json b/package.json
index e884e8e..bda4793 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
   "devDependencies": {
     "@types/jest": "^29.5.12",
     "@vitest/coverage-v8": "^1.6.0",
-    "c8": "^9.1.0",
+    "c8": "^10.1.2",
     "kcd-scripts": "^15.0.1",
     "remark": "^15.0.1",
     "remark-html": "^16.0.1",