diff --git a/backend/package.json b/backend/package.json
index 862721d..e3fe4e2 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -11,7 +11,7 @@
     "@fastify/cors": "^9.0.1",
     "@fastify/multipart": "^9.0.1",
     "@fastify/static": "^8.0.1",
-    "fastify": "^4.28.1",
+    "fastify": "^5.0.0",
     "jose": "^5.9.6",
     "pg": "^8.13.1"
   }