diff --git a/src/proxy/proxy_h3.rs b/src/proxy/proxy_h3.rs
index 4be9b00..c56b35d 100644
--- a/src/proxy/proxy_h3.rs
+++ b/src/proxy/proxy_h3.rs
@@ -4,6 +4,7 @@ use bytes::{Buf, Bytes};
 use h3::{quic::BidiStream, server::RequestStream};
 use hyper::{client::connect::Connect, Body, HeaderMap, Request, Response};
 use std::net::SocketAddr;
+use tokio::time::Duration;
 
 impl<T> Proxy<T>
 where
@@ -57,7 +58,7 @@ where
         //   .await
         //   .map_err(|e| anyhow!("HTTP/3 accept failed: {}", e))?
         while let Some((req, stream)) = match tokio::time::timeout(
-          tokio::time::Duration::from_millis(H3_CONN_TIMEOUT_MILLIS),
+          Duration::from_millis(H3_CONN_TIMEOUT_MILLIS),
           h3_conn.accept(),
         )
         .await
diff --git a/src/proxy/proxy_tls.rs b/src/proxy/proxy_tls.rs
index 6951561..29d4caf 100644
--- a/src/proxy/proxy_tls.rs
+++ b/src/proxy/proxy_tls.rs
@@ -5,8 +5,8 @@ use futures::StreamExt;
 use futures::{future::FutureExt, select};
 use hyper::{client::connect::Connect, server::conn::Http};
 use rustls::ServerConfig;
-use std::{sync::Arc, time::Duration};
-use tokio::net::TcpListener;
+use std::sync::Arc;
+use tokio::{net::TcpListener, time::Duration};
 
 impl<T> Proxy<T>
 where
@@ -122,7 +122,7 @@ where
       .get(initial_app_name)
       .ok_or_else(|| anyhow!(""))?;
     while backend_serve.get_tls_server_config().is_none() {
-      tokio::time::sleep(tokio::time::Duration::from_millis(10)).await;
+      tokio::time::sleep(Duration::from_millis(10)).await;
     }
     let server_crypto = backend_serve
       .get_tls_server_config()