diff --git a/Cargo.toml b/Cargo.toml
index 9fb44ecc..390bf101 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -96,6 +96,8 @@ mime = "0.3"
 percent-encoding = "2.1"
 http = "0.2.9"
 h2 = "0.3.19"
+h3-quinn = "0.0.3"
+h3 = "0.0.2"
 #
 log = "0.4"
 slog = "2"
diff --git a/g3bench/Cargo.toml b/g3bench/Cargo.toml
index b75783ff..4da76e41 100644
--- a/g3bench/Cargo.toml
+++ b/g3bench/Cargo.toml
@@ -18,8 +18,8 @@ tokio = { workspace = true, features = ["rt", "net", "macros"] }
 http.workspace = true
 url.workspace = true
 h2.workspace = true
-h3 = "0.0.2"
-h3-quinn = "0.0.3"
+h3.workspace = true
+h3-quinn.workspace = true
 bytes.workspace = true
 futures-util.workspace = true
 tokio-openssl.workspace = true
diff --git a/g3bench/src/target/h3/opts.rs b/g3bench/src/target/h3/opts.rs
index 6fc1382e..ad4387c6 100644
--- a/g3bench/src/target/h3/opts.rs
+++ b/g3bench/src/target/h3/opts.rs
@@ -29,7 +29,7 @@ use http::{HeaderValue, Method, StatusCode};
 use url::Url;
 
 use g3_types::collection::{SelectiveVec, WeightedValue};
-use g3_types::net::{HttpAuth, RustlsClientConfigBuilder, UpstreamAddr};
+use g3_types::net::{AlpnProtocol, HttpAuth, RustlsClientConfigBuilder, UpstreamAddr};
 
 use super::{H3PreRequest, HttpRuntimeStats, ProcArgs};
 use crate::target::{AppendRustlsArgs, RustlsTlsClientArgs};
@@ -68,6 +68,7 @@ impl BenchH3Args {
 
         let tls = RustlsTlsClientArgs {
             config: Some(RustlsClientConfigBuilder::default()),
+            alpn_protocol: Some(AlpnProtocol::Http3),
             ..Default::default()
         };
 
@@ -114,7 +115,7 @@ impl BenchH3Args {
         };
         let mut transport = TransportConfig::default();
         transport.max_concurrent_bidi_streams(VarInt::from_u32(0));
-        transport.max_concurrent_uni_streams(VarInt::from_u32(0));
+        // transport.max_concurrent_uni_streams(VarInt::from_u32(0));
         // TODO add more transport settings
         let mut client_config = ClientConfig::new(tls_client.driver.clone());
         client_config.transport_config(Arc::new(transport));
diff --git a/g3bench/src/target/h3/task.rs b/g3bench/src/target/h3/task.rs
index 0069bd90..e966cc64 100644
--- a/g3bench/src/target/h3/task.rs
+++ b/g3bench/src/target/h3/task.rs
@@ -129,7 +129,7 @@ impl H3TaskContext {
         let mut send_stream = send_req
             .send_request(req)
             .await
-            .map_err(|e| anyhow!("failed to send request header: {e:?}"))?;
+            .map_err(|e| anyhow!("failed to send request header: {e}"))?;
         send_stream.finish().await?;
         let send_hdr_time = time_started.elapsed();
         if let Some(r) = &mut self.histogram_recorder {
diff --git a/g3bench/src/target/openssl.rs b/g3bench/src/target/openssl.rs
index 476626ea..52e1ec7e 100644
--- a/g3bench/src/target/openssl.rs
+++ b/g3bench/src/target/openssl.rs
@@ -189,7 +189,7 @@ impl OpensslTlsClientArgs {
         let tls_client = if let Some(p) = self.alpn_protocol {
             tls_config
                 .build_with_alpn_protocols(Some(vec![p]))
-                .context("failed to build tls client with alpn protocol {p}")?
+                .context(format!("failed to build tls client with alpn protocol {p}"))?
         } else {
             tls_config.build().context("failed to build tls client")?
         };
diff --git a/g3bench/src/target/rustls.rs b/g3bench/src/target/rustls.rs
index 94a414fc..91c80fdc 100644
--- a/g3bench/src/target/rustls.rs
+++ b/g3bench/src/target/rustls.rs
@@ -22,7 +22,9 @@ use anyhow::{anyhow, Context};
 use clap::{value_parser, Arg, ArgAction, ArgMatches, Command, ValueHint};
 use rustls::{Certificate, PrivateKey};
 
-use g3_types::net::{RustlsCertificatePair, RustlsClientConfig, RustlsClientConfigBuilder};
+use g3_types::net::{
+    AlpnProtocol, RustlsCertificatePair, RustlsClientConfig, RustlsClientConfigBuilder,
+};
 
 const TLS_ARG_CA_CERT: &str = "tls-ca-cert";
 const TLS_ARG_CERT: &str = "tls-cert";
@@ -52,6 +54,7 @@ pub(crate) struct RustlsTlsClientArgs {
     pub(crate) tls_name: Option<String>,
     pub(crate) cert_pair: RustlsCertificatePair,
     pub(crate) no_verify: bool,
+    pub(crate) alpn_protocol: Option<AlpnProtocol>,
 }
 
 impl RustlsTlsClientArgs {
@@ -137,7 +140,13 @@ impl RustlsTlsClientArgs {
         }
 
         tls_config.check().context("invalid tls config")?;
-        let tls_client = tls_config.build().context("failed to build tls client")?;
+        let tls_client = if let Some(p) = self.alpn_protocol {
+            tls_config
+                .build_with_alpn_protocols(Some(vec![p]))
+                .context(format!("failed to build tls client with alpn protocol {p}"))?
+        } else {
+            tls_config.build().context("failed to build tls client")?
+        };
         self.client = Some(tls_client);
         Ok(())
     }
diff --git a/lib/g3-dpi/src/protocol/mod.rs b/lib/g3-dpi/src/protocol/mod.rs
index b9305682..306534a2 100644
--- a/lib/g3-dpi/src/protocol/mod.rs
+++ b/lib/g3-dpi/src/protocol/mod.rs
@@ -101,9 +101,10 @@ impl FromStr for MaybeProtocol {
 impl From<AlpnProtocol> for MaybeProtocol {
     fn from(p: AlpnProtocol) -> Self {
         match p {
-            AlpnProtocol::Http10 | AlpnProtocol::Http11 | AlpnProtocol::Http2 => {
-                MaybeProtocol::Http
-            }
+            AlpnProtocol::Http10
+            | AlpnProtocol::Http11
+            | AlpnProtocol::Http2
+            | AlpnProtocol::Http3 => MaybeProtocol::Http,
         }
     }
 }
@@ -117,6 +118,7 @@ pub enum Protocol {
     TlsTlcp,
     Http1,
     Http2,
+    Http3,
     Smtp,
     SshLegacy,
     Ssh,
@@ -142,6 +144,7 @@ impl Protocol {
             Protocol::TlsTlcp => "tls_tlcp",
             Protocol::Http1 => "http_1",
             Protocol::Http2 => "http_2",
+            Protocol::Http3 => "http_3",
             Protocol::Smtp => "smtp",
             Protocol::SshLegacy => "ssh_legacy",
             Protocol::Ssh => "ssh",
@@ -164,6 +167,7 @@ impl From<AlpnProtocol> for Protocol {
         match p {
             AlpnProtocol::Http10 | AlpnProtocol::Http11 => Protocol::Http1,
             AlpnProtocol::Http2 => Protocol::Http2,
+            AlpnProtocol::Http3 => Protocol::Http3,
         }
     }
 }
diff --git a/lib/g3-types/src/net/tls/alpn.rs b/lib/g3-types/src/net/tls/alpn.rs
index 74ee240b..656d07d4 100644
--- a/lib/g3-types/src/net/tls/alpn.rs
+++ b/lib/g3-types/src/net/tls/alpn.rs
@@ -14,19 +14,38 @@
  * limitations under the License.
  */
 
+use std::fmt;
+
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum AlpnProtocol {
     Http10,
     Http11,
     Http2,
+    Http3,
+}
+
+impl fmt::Display for AlpnProtocol {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.as_str())
+    }
 }
 
 impl AlpnProtocol {
+    pub fn as_str(&self) -> &str {
+        match self {
+            Self::Http10 => "http/1.0",
+            Self::Http11 => "http/1.1",
+            Self::Http2 => "h2",
+            Self::Http3 => "h3",
+        }
+    }
+
     pub fn wired_identification_sequence(&self) -> &'static [u8] {
         match self {
             Self::Http10 => b"\x08http/1.0",
             Self::Http11 => b"\x08http/1.1",
             Self::Http2 => b"\x02h2",
+            Self::Http3 => b"\x02h3",
         }
     }
 
@@ -45,6 +64,7 @@ impl AlpnProtocol {
             b"http/1.0" => Some(AlpnProtocol::Http10),
             b"http/1.1" => Some(AlpnProtocol::Http11),
             b"h2" => Some(AlpnProtocol::Http2),
+            b"h3" => Some(AlpnProtocol::Http3),
             _ => None,
         }
     }