diff --git a/env.example b/env.example
index cb6b8e28..d16b5e8a 100644
--- a/env.example
+++ b/env.example
@@ -131,6 +131,7 @@ POSTGRES_PORT=5432
 POSTGRES_USER=your_username
 POSTGRES_PASSWORD='your_password'
 POSTGRES_DATABASE=your_database
+POSTGRES_MAX_CONNECTIONS=12
 ### separating all data from difference Lightrag instances(deprecating)
 # POSTGRES_WORKSPACE=default