diff --git a/package.json b/package.json
index cc67660..6ebe87c 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "@babel/core": "^8.0.0-alpha.5",
     "@cloudcmd/stub": "^4.0.1",
     "@putout/test": "^8.0.0",
-    "c8": "^8.0.0",
+    "c8": "^9.1.0",
     "check-dts": "^0.7.1",
     "escover": "^4.0.1",
     "eslint": "^8.48.0",