diff --git a/sgl-model-gateway/src/core/worker.rs b/sgl-model-gateway/src/core/worker.rs
index 5339c7b10..3a1544ab0 100644
--- a/sgl-model-gateway/src/core/worker.rs
+++ b/sgl-model-gateway/src/core/worker.rs
@@ -10,7 +10,6 @@ use std::{
 use async_trait::async_trait;
 use axum::body::Body;
 use serde::{Deserialize, Serialize};
-use serde_json;
 use tokio::{sync::OnceCell, time};
 
 use super::{