diff --git a/benchmarks/fastify/package.json b/benchmarks/fastify/package.json
index 39f059a20..5f58b9018 100644
--- a/benchmarks/fastify/package.json
+++ b/benchmarks/fastify/package.json
@@ -3,6 +3,6 @@
   "private": true,
   "version": "0.0.1",
   "dependencies": {
-    "fastify": "^3.24.0"
+    "fastify": "^5.12.1"
   }
 }