diff --git a/chart/env/prod.yaml b/chart/env/prod.yaml
index 5c4faf9430c..93879d6e639 100644
--- a/chart/env/prod.yaml
+++ b/chart/env/prod.yaml
@@ -30,6 +30,7 @@ envVars:
   ADDRESS_HEADER: 'X-Forwarded-For'
   ALTERNATIVE_REDIRECT_URLS: '["huggingchat://login/callback"]'
   APP_BASE: "/chat"
+  BODY_SIZE_LIMIT: 12288
   ENABLE_ASSISTANTS: "true"
   ENABLE_ASSISTANTS_RAG: "true"
   EXPOSE_API: "true"