diff --git a/packages/express-adapter/package.json b/packages/express-adapter/package.json
index 73ca603..6d981f3 100644
--- a/packages/express-adapter/package.json
+++ b/packages/express-adapter/package.json
@@ -27,7 +27,7 @@
 	},
 	"devDependencies": {
 		"@types/express": "5.0.3",
-		"@vitest/coverage-v8": "3.2.4",
+		"@vitest/coverage-v8": "4.0.4",
 		"node-mocks-http": "1.17.2",
 		"tsup": "8.5.0",
 		"typescript": "5.9.2",