diff --git a/packages/rpc/package.json b/packages/rpc/package.json
index 015c876e8..1ad897d99 100644
--- a/packages/rpc/package.json
+++ b/packages/rpc/package.json
@@ -22,7 +22,7 @@
     "@connectrpc/connect": "1.7.0",
     "@connectrpc/connect-fastify": "1.7.0",
     "@connectrpc/connect-node": "1.7.0",
-    "fastify": "4.29.1"
+    "fastify": "5.8.3"
   },
   "devDependencies": {
     "@bufbuild/buf": "^1.39.0",