diff --git a/package.json b/package.json
index ab69400..8efc370 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "@fastify/postgres": "^5.2.0",
     "async": "^3.2.0",
     "benchmark": "^2.1.4",
-    "fastify": "^4.0.1",
+    "fastify": "^5.6.2",
     "jsonfile": "^6.1.0",
     "napa": "^3.0.0",
     "pg": "^8.6.0",