diff --git a/src/client.rs b/src/client.rs
index ffeda6077..f932ec2bc 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -1287,12 +1287,12 @@ async fn bind_connection<T>(io: &mut T) -> Result<(), crate::Error>
 where
     T: AsyncRead + AsyncWrite + Unpin,
 {
-    tracing::debug!("binding client connection");
+    tracing::trace!("binding client connection");
 
     let msg: &'static [u8] = b"PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n";
     io.write_all(msg).await.map_err(crate::Error::from_io)?;
 
-    tracing::debug!("client connection bound");
+    tracing::trace!("client connection bound");
 
     Ok(())
 }
diff --git a/src/codec/framed_read.rs b/src/codec/framed_read.rs
index edb8d9548..8decec589 100644
--- a/src/codec/framed_read.rs
+++ b/src/codec/framed_read.rs
@@ -300,7 +300,7 @@ fn decode_frame(
             } else {
                 let cnt = partial.continuation_frames_count + 1;
                 if cnt > max_continuation_frames {
-                    tracing::debug!("too_many_continuations, max = {}", max_continuation_frames);
+                    tracing::trace!("too_many_continuations, max = {}", max_continuation_frames);
                     return Err(Error::library_go_away_data(
                         Reason::ENHANCE_YOUR_CALM,
                         "too_many_continuations",
@@ -401,7 +401,7 @@ where
                 partial,
                 bytes,
             )? {
-                tracing::debug!(?frame, "received");
+                tracing::trace!(?frame, "received");
                 return Poll::Ready(Some(Ok(frame)));
             }
         }
diff --git a/src/codec/framed_write.rs b/src/codec/framed_write.rs
index c88af02da..7855c5aeb 100644
--- a/src/codec/framed_write.rs
+++ b/src/codec/framed_write.rs
@@ -210,7 +210,7 @@ where
         let span = tracing::trace_span!("FramedWrite::buffer", frame = ?item);
         let _e = span.enter();
 
-        tracing::debug!(frame = ?item, "send");
+        tracing::trace!(frame = ?item, "send");
 
         match item {
             Frame::Data(mut v) => {
diff --git a/src/frame/settings.rs b/src/frame/settings.rs
index 484498a9d..5edd58ae6 100644
--- a/src/frame/settings.rs
+++ b/src/frame/settings.rs
@@ -149,7 +149,7 @@ impl Settings {
 
         // Ensure the payload length is correct, each setting is 6 bytes long.
         if payload.len() % 6 != 0 {
-            tracing::debug!("invalid settings payload length; len={:?}", payload.len());
+            tracing::trace!("invalid settings payload length; len={:?}", payload.len());
             return Err(Error::InvalidPayloadAckSettings);
         }
 
diff --git a/src/hpack/decoder.rs b/src/hpack/decoder.rs
index e48976c36..f5bc52c18 100644
--- a/src/hpack/decoder.rs
+++ b/src/hpack/decoder.rs
@@ -257,7 +257,7 @@ impl Decoder {
             return Err(DecoderError::InvalidMaxDynamicSize);
         }
 
-        tracing::debug!(
+        tracing::trace!(
             from = self.table.size(),
             to = new_size,
             "Decoder changed max table size"
diff --git a/src/lib.rs b/src/lib.rs
index 3d59ef21e..7716e84ce 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -89,10 +89,10 @@
 
 macro_rules! proto_err {
     (conn: $($msg:tt)+) => {
-        tracing::debug!("connection error PROTOCOL_ERROR -- {};", format_args!($($msg)+))
+        tracing::trace!("connection error PROTOCOL_ERROR -- {};", format_args!($($msg)+))
     };
     (stream: $($msg:tt)+) => {
-        tracing::debug!("stream error PROTOCOL_ERROR -- {};", format_args!($($msg)+))
+        tracing::trace!("stream error PROTOCOL_ERROR -- {};", format_args!($($msg)+))
     };
 }
 
diff --git a/src/proto/connection.rs b/src/proto/connection.rs
index 5589fabcb..7510eae13 100644
--- a/src/proto/connection.rs
+++ b/src/proto/connection.rs
@@ -135,7 +135,7 @@ where
                 ping_pong: PingPong::new(),
                 settings: Settings::new(config.settings),
                 streams,
-                span: tracing::debug_span!("Connection", peer = %P::NAME),
+                span: tracing::trace_span!("Connection", peer = %P::NAME),
                 _phantom: PhantomData,
             },
         }
@@ -432,7 +432,7 @@ where
             // terminating the connection.
             Err(Error::GoAway(debug_data, reason, initiator)) => {
                 let e = Error::GoAway(debug_data.clone(), reason, initiator);
-                tracing::debug!(error = ?e, "Connection::poll; connection error");
+                tracing::trace!(error = ?e, "Connection::poll; connection error");
 
                 // We may have already sent a GOAWAY for this error,
                 // if so, don't send another, just flush and close up.
@@ -465,7 +465,7 @@ where
             //
             // TODO: Are I/O errors recoverable?
             Err(Error::Io(kind, inner)) => {
-                tracing::debug!(error = ?kind, "Connection::poll; IO error");
+                tracing::trace!(error = ?kind, "Connection::poll; IO error");
                 let e = Error::Io(kind, inner);
 
                 // Reset all active streams
diff --git a/src/proto/settings.rs b/src/proto/settings.rs
index d6155fc3d..66a3a9ac0 100644
--- a/src/proto/settings.rs
+++ b/src/proto/settings.rs
@@ -53,7 +53,7 @@ impl Settings {
         if frame.is_ack() {
             match &self.local {
                 Local::WaitingAck(local) => {
-                    tracing::debug!("received settings ACK; applying {:?}", local);
+                    tracing::trace!("received settings ACK; applying {:?}", local);
 
                     if let Some(max) = local.max_frame_size() {
                         codec.set_max_recv_frame_size(max as usize);
diff --git a/src/proto/streams/recv.rs b/src/proto/streams/recv.rs
index d8572d00a..e6a6a38d3 100644
--- a/src/proto/streams/recv.rs
+++ b/src/proto/streams/recv.rs
@@ -212,7 +212,7 @@ impl Recv {
             // So, if peer is a server, we'll send a 431. In either case,
             // an error is recorded, which will send a REFUSED_STREAM,
             // since we don't want any of the data frames either.
-            tracing::debug!(
+            tracing::trace!(
                 "stream error REQUEST_HEADER_FIELDS_TOO_LARGE -- \
                  recv_headers: frame is over size; stream={:?}",
                 stream.id
@@ -699,7 +699,7 @@ impl Recv {
 
     pub fn consume_connection_window(&mut self, sz: WindowSize) -> Result<(), Error> {
         if self.flow.window_size() < sz {
-            tracing::debug!(
+            tracing::trace!(
                 "connection error FLOW_CONTROL_ERROR -- window_size ({:?}) < sz ({:?});",
                 self.flow.window_size(),
                 sz,
@@ -733,7 +733,7 @@ impl Recv {
             // So, if peer is a server, we'll send a 431. In either case,
             // an error is recorded, which will send a PROTOCOL_ERROR,
             // since we don't want any of the data frames either.
-            tracing::debug!(
+            tracing::trace!(
                 "stream error PROTOCOL_ERROR -- recv_push_promise: \
                  headers frame is over size; promised_id={:?};",
                 frame.promised_id(),
@@ -780,7 +780,7 @@ impl Recv {
     pub fn ensure_not_idle(&self, id: StreamId) -> Result<(), Reason> {
         if let Ok(next) = self.next_stream_id {
             if id >= next {
-                tracing::debug!(
+                tracing::trace!(
                     "stream ID implicitly closed, PROTOCOL_ERROR; stream={:?}",
                     id
                 );
diff --git a/src/proto/streams/send.rs b/src/proto/streams/send.rs
index 2a7abba06..a2cdbd6d6 100644
--- a/src/proto/streams/send.rs
+++ b/src/proto/streams/send.rs
@@ -85,11 +85,11 @@ impl Send {
             || fields.contains_key("keep-alive")
             || fields.contains_key("proxy-connection")
         {
-            tracing::debug!("illegal connection-specific headers found");
+            tracing::trace!("illegal connection-specific headers found");
             return Err(UserError::MalformedHeaders);
         } else if let Some(te) = fields.get(http::header::TE) {
             if te != "trailers" {
-                tracing::debug!("illegal connection-specific headers found");
+                tracing::trace!("illegal connection-specific headers found");
                 return Err(UserError::MalformedHeaders);
             }
         }
@@ -375,7 +375,7 @@ impl Send {
         task: &mut Option<Waker>,
     ) -> Result<(), Reason> {
         if let Err(e) = self.prioritize.recv_stream_window_update(sz, stream) {
-            tracing::debug!("recv_stream_window_update !!; err={:?}", e);
+            tracing::trace!("recv_stream_window_update !!; err={:?}", e);
 
             self.send_reset(
                 Reason::FLOW_CONTROL_ERROR,
diff --git a/src/proto/streams/streams.rs b/src/proto/streams/streams.rs
index 7b5c7669a..cb53f765f 100644
--- a/src/proto/streams/streams.rs
+++ b/src/proto/streams/streams.rs
@@ -445,7 +445,7 @@ impl Inner {
                     // This may be response headers for a stream we've already
                     // forgotten about...
                     if self.actions.may_have_forgotten_stream(peer, id) {
-                        tracing::debug!(
+                        tracing::trace!(
                             "recv_headers for old stream={:?}, sending STREAM_CLOSED",
                             id,
                         );
@@ -555,7 +555,7 @@ impl Inner {
                 }
 
                 if self.actions.may_have_forgotten_stream(peer, id) {
-                    tracing::debug!("recv_data for old stream={:?}, sending STREAM_CLOSED", id,);
+                    tracing::trace!("recv_data for old stream={:?}, sending STREAM_CLOSED", id,);
 
                     let sz = frame.payload().len();
                     // This should have been enforced at the codec::FramedRead layer, so
diff --git a/src/server.rs b/src/server.rs
index b00bc0866..55560d522 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -1454,12 +1454,12 @@ impl Peer {
         if let Err(e) = frame::PushPromise::validate_request(&request) {
             use PushPromiseHeaderError::*;
             match e {
-                NotSafeAndCacheable => tracing::debug!(
+                NotSafeAndCacheable => tracing::trace!(
                     ?promised_id,
                     "convert_push_message: method {} is not safe and cacheable",
                     request.method(),
                 ),
-                InvalidContentLength(e) => tracing::debug!(
+                InvalidContentLength(e) => tracing::trace!(
                     ?promised_id,
                     "convert_push_message; promised request has invalid content-length {:?}",
                     e,
@@ -1516,7 +1516,7 @@ impl proto::Peer for Peer {
 
         macro_rules! malformed {
             ($($arg:tt)*) => {{
-                tracing::debug!($($arg)*);
+                tracing::trace!($($arg)*);
                 return Err(Error::library_reset(stream_id, Reason::PROTOCOL_ERROR));
             }}
         }