diff --git a/Cargo.toml b/Cargo.toml
index 575ccb9..3ff008e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -53,8 +53,6 @@ h3 = { git = "https://github.com/hyperium/h3.git" }
 h3-quinn = { git = "https://github.com/hyperium/h3.git" }
 bytes = "1.1.0"
 mimalloc-rust = "0.2.0"
-thiserror = "1.0.31"
-
 
 [dev-dependencies]
 
diff --git a/src/proxy/proxy_h3.rs b/src/proxy/proxy_h3.rs
index 794aede..be44917 100644
--- a/src/proxy/proxy_h3.rs
+++ b/src/proxy/proxy_h3.rs
@@ -99,9 +99,10 @@ where
     tls_server_name: ServerNameLC,
   ) -> Result<()>
   where
-    S: BidiStream<Bytes> + Send + 'static,
+    S: BidiStream<Bytes>,
   {
     let (req_parts, _) = req.into_parts();
+    // let (mut send_stream, mut recv_stream) = stream.split(); // TODO: split stream and async body handling
 
     // TODO: h3 -> h2/http1.1等のプロトコル変換のため、一旦全部バッファリングしないと無理そう。H3->H3ならBytesを直に流し込めるのだが。
     let mut body_buf = BytesMut::new();