diff --git a/langgraph.json b/langgraph.json
index 3487605..4c8d865 100644
--- a/langgraph.json
+++ b/langgraph.json
@@ -1,4 +1,5 @@
 {
+  "node_version": "20",
   "graphs": {
     "agent": "./agent/agent.tsx:graph"
   },