diff --git a/package.json b/package.json
index 1e82695..8f8cd68 100644
--- a/package.json
+++ b/package.json
@@ -65,7 +65,7 @@
   },
   "devDependencies": {
     "@fastify/cookie": "^11.0.1",
-    "@fastify/formbody": "^8.0.0",
+    "@fastify/formbody": "^9.0.0",
     "@fastify/websocket": "^11.0.1",
     "@hotwired/turbo": "^8.0.10",
     "@types/node": "^26.0.0",