diff --git a/packages/app-autoload/src/index.ts b/packages/app-autoload/src/index.ts
index 809fdd2..f789bd2 100644
--- a/packages/app-autoload/src/index.ts
+++ b/packages/app-autoload/src/index.ts
@@ -242,6 +242,6 @@ export default fp(async function (instance: FastifyInstance, opts: AppAutoload |
     return;
 
 }, {
-    fastify: '3.x',
+    fastify: '>= 3.0.0 < 5.0.0',
     name: '@hoth/app-autoload',
 });