diff --git a/packages/fastify-adapter/package.json b/packages/fastify-adapter/package.json
index d95572e..5e39b95 100644
--- a/packages/fastify-adapter/package.json
+++ b/packages/fastify-adapter/package.json
@@ -26,7 +26,7 @@
 	},
 	"devDependencies": {
 		"@fastify/cookie": "11.0.2",
-		"@vitest/coverage-v8": "3.2.4",
+		"@vitest/coverage-v8": "4.0.4",
 		"fastify": "5.6.0",
 		"tsup": "8.5.0",
 		"typescript": "5.9.2",