diff --git a/package.json b/package.json
index 5f39e0f..51da189 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "@types/cross-spawn": "^6.0.2",
     "@types/node": "^18.11.8",
     "@types/prismjs": "^1.26.0",
-    "c8": "^8.0.1",
+    "c8": "^9.1.0",
     "chai": "^4.3.6",
     "chai-as-promised": "^7.1.1",
     "eslint": "^8.23.0",