diff --git a/package.json b/package.json
index 6d9c8ffc..4f48237e 100644
--- a/package.json
+++ b/package.json
@@ -74,7 +74,7 @@
     "ajv": "8.12.0",
     "ava": "6.0.1",
     "babel-loader": "9.1.3",
-    "c8": "8.0.1",
+    "c8": "9.0.0",
     "character-entities": "2.0.2",
     "eslint": "8.56.0",
     "eslint-plugin-es": "4.1.0",