diff --git a/src/async_impl/body.rs b/src/async_impl/body.rs
index 56a6dd882..999bfa561 100644
--- a/src/async_impl/body.rs
+++ b/src/async_impl/body.rs
@@ -237,6 +237,36 @@ impl fmt::Debug for Body {
     }
 }
 
+impl hyper::body::Body for Body {
+    type Data = Bytes;
+    type Error = crate::Error;
+
+    fn poll_frame(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context,
+    ) -> Poll<Option<Result<hyper::body::Frame<Self::Data>, Self::Error>>> {
+        match self.inner {
+            Inner::Reusable(ref mut bytes) => {
+                let out = bytes.split_off(0);
+                if out.is_empty() {
+                    Poll::Ready(None)
+                } else {
+                    Poll::Ready(Some(Ok(hyper::body::Frame::data(out))))
+                }
+            },
+            Inner::Streaming { ref mut body, ref mut timeout } => {
+                if let Some(timeout) = timeout {
+                    if let Poll::Ready(()) = timeout.as_mut().poll(cx) {
+                        return Poll::Ready(Some(Err(crate::error::body(crate::error::TimedOut))));
+                    }
+                }
+                Poll::Ready(futures_core::ready!(Pin::new(body).poll_frame(cx))
+                    .map(|opt_chunk| opt_chunk.map_err(crate::error::body)))
+            }
+        }
+    }
+}
+
 // ===== impl TotalTimeoutBody =====
 
 pub(crate) fn total_timeout<B>(body: B, timeout: Pin<Box<Sleep>>) -> TotalTimeoutBody<B> {
diff --git a/src/async_impl/client.rs b/src/async_impl/client.rs
index de10bab24..b757c1738 100644
--- a/src/async_impl/client.rs
+++ b/src/async_impl/client.rs
@@ -52,6 +52,8 @@ use quinn::TransportConfig;
 #[cfg(feature = "http3")]
 use quinn::VarInt;
 
+type HyperResponseFuture = hyper_util::client::legacy::ResponseFuture;
+
 /// An asynchronous `Client` to make Requests with.
 ///
 /// The Client has various configuration values to tweak, but the defaults
@@ -612,7 +614,7 @@ impl ClientBuilder {
         connector.set_timeout(config.connect_timeout);
         connector.set_verbose(config.connection_verbose);
 
-        let mut builder = HyperClient::builder();
+        let mut builder = HyperClient::builder(hyper_util::rt::TokioExecutor::new());
         if matches!(config.http_version_pref, HttpVersionPref::Http2) {
             builder.http2_only(true);
         }
@@ -1651,7 +1653,7 @@ impl ClientBuilder {
     }
 }
 
-type HyperClient = hyper_util::client::legacy::Client<Connector, super::body::ImplStream>;
+type HyperClient = hyper_util::client::legacy::Client<Connector, super::Body>;
 
 impl Default for Client {
     fn default() -> Self {
@@ -1829,7 +1831,7 @@ impl Client {
             }
             _ => {
                 let mut req = builder
-                    .body(body.into_stream())
+                    .body(body)
                     .expect("valid request parts");
                 *req.headers_mut() = headers.clone();
                 ResponseFuture::Default(self.inner.hyper.request(req))
@@ -2194,7 +2196,7 @@ impl PendingRequest {
                 let mut req = hyper::Request::builder()
                     .method(self.method.clone())
                     .uri(uri)
-                    .body(body.into_stream())
+                    .body(body)
                     .expect("valid request parts");
                 *req.headers_mut() = self.headers.clone();
                 ResponseFuture::Default(self.client.hyper.request(req))
@@ -2423,7 +2425,7 @@ impl Future for PendingRequest {
                                         let mut req = hyper::Request::builder()
                                             .method(self.method.clone())
                                             .uri(uri.clone())
-                                            .body(body.into_stream())
+                                            .body(body)
                                             .expect("valid request parts");
                                         *req.headers_mut() = headers.clone();
                                         std::mem::swap(self.as_mut().headers(), &mut headers);
diff --git a/src/async_impl/decoder.rs b/src/async_impl/decoder.rs
index 8d54c0d1d..dcff434cb 100644
--- a/src/async_impl/decoder.rs
+++ b/src/async_impl/decoder.rs
@@ -214,22 +214,31 @@ impl Decoder {
     }
 }
 
-impl Stream for Decoder {
-    type Item = Result<Bytes, error::Error>;
+impl HttpBody for Decoder {
+    type Data = Bytes;
+    type Error = crate::Error;
 
-    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Option<Self::Item>> {
-        // Do a read or poll for a pending decoder value.
+    fn poll_frame(
+        mut self: Pin<&mut Self>,
+        cx: &mut Context,
+    ) -> Poll<Option<Result<Frame<Self::Data>, Self::Error>>> {
         match self.inner {
             #[cfg(any(feature = "brotli", feature = "gzip", feature = "deflate"))]
             Inner::Pending(ref mut future) => match Pin::new(future).poll(cx) {
                 Poll::Ready(Ok(inner)) => {
                     self.inner = inner;
-                    self.poll_next(cx)
+                    self.poll_frame(cx)
                 }
                 Poll::Ready(Err(e)) => Poll::Ready(Some(Err(crate::error::decode_io(e)))),
                 Poll::Pending => Poll::Pending,
             },
-            Inner::PlainText(ref mut body) => Pin::new(body).poll_next(cx),
+            Inner::PlainText(ref mut body) => {
+                match futures_core::ready!(Pin::new(body).poll_frame(cx)) {
+                    Some(Ok(frame)) => Poll::Ready(Some(Ok(frame))),
+                    Some(Err(err)) => Poll::Ready(Some(Err(crate::error::decode(err)))),
+                    None => Poll::Ready(None),
+                }
+            },
             #[cfg(feature = "gzip")]
             Inner::Gzip(ref mut decoder) => {
                 match futures_core::ready!(Pin::new(decoder).poll_next(cx)) {
@@ -256,18 +265,6 @@ impl Stream for Decoder {
             }
         }
     }
-}
-
-impl HttpBody for Decoder {
-    type Data = Bytes;
-    type Error = crate::Error;
-
-    fn poll_frame(
-        self: Pin<&mut Self>,
-        cx: &mut Context,
-    ) -> Poll<Option<Result<Frame<Self::Data>, Self::Error>>> {
-        self.poll_next(cx)
-    }
 
     fn size_hint(&self) -> http_body::SizeHint {
         match self.inner {
@@ -279,6 +276,11 @@ impl HttpBody for Decoder {
     }
 }
 
+fn empty() -> ResponseBody {
+    use http_body_util::{combinators::BoxBody, BodyExt, Empty};
+    BoxBody::new(Empty::new().map_err(|never| match never {}))
+}
+
 impl Future for Pending {
     type Output = Result<Inner, std::io::Error>;
 
@@ -297,12 +299,12 @@ impl Future for Pending {
                 .expect("just peeked Some")
                 .unwrap_err()));
             }
-            None => return Poll::Ready(Ok(Inner::PlainText(Body::empty().into_stream()))),
+            None => return Poll::Ready(Ok(Inner::PlainText(empty()))),
         };
 
         let _body = std::mem::replace(
             &mut self.0,
-            IoStream(Body::empty().into_stream()).peekable(),
+            IoStream(empty()).peekable(),
         );
 
         match self.1 {