diff --git a/rpxy-bin/src/config/toml.rs b/rpxy-bin/src/config/toml.rs
index 339fed8..7cd3653 100644
--- a/rpxy-bin/src/config/toml.rs
+++ b/rpxy-bin/src/config/toml.rs
@@ -176,9 +176,9 @@ impl TryInto<ProxyConfig> for &ConfigToml {
 
       if let Some(timeout) = exp.connection_handling_timeout {
         if timeout == 0u64 {
-          proxy_config.connection_handling_timeout = Duration::from_secs(u64::MAX);
+          proxy_config.connection_handling_timeout = None;
         } else {
-          proxy_config.connection_handling_timeout = Duration::from_secs(timeout);
+          proxy_config.connection_handling_timeout = Some(Duration::from_secs(timeout));
         }
       }
 
diff --git a/rpxy-lib/src/globals.rs b/rpxy-lib/src/globals.rs
index 4c499f1..e4bff9e 100644
--- a/rpxy-lib/src/globals.rs
+++ b/rpxy-lib/src/globals.rs
@@ -47,7 +47,7 @@ pub struct ProxyConfig {
   pub sni_consistency: bool, // Handler
   /// Connection handling timeout
   /// timeout to handle a connection, total time of receive request, serve, and send response. this might limits the max length of response.
-  pub connection_handling_timeout: Duration,
+  pub connection_handling_timeout: Option<Duration>,
 
   #[cfg(feature = "cache")]
   pub cache_enabled: bool,
@@ -94,7 +94,7 @@ impl Default for ProxyConfig {
       keepalive: true,
 
       sni_consistency: true,
-      connection_handling_timeout: Duration::from_secs(u64::MAX),
+      connection_handling_timeout: None,
 
       #[cfg(feature = "cache")]
       cache_enabled: false,
diff --git a/rpxy-lib/src/lib.rs b/rpxy-lib/src/lib.rs
index a88c646..115b78a 100644
--- a/rpxy-lib/src/lib.rs
+++ b/rpxy-lib/src/lib.rs
@@ -55,10 +55,10 @@ where
   if proxy_config.https_port.is_some() {
     info!("Listen port: {} (for TLS)", proxy_config.https_port.unwrap());
   }
-  if proxy_config.connection_handling_timeout.as_secs() < u64::MAX {
+  if proxy_config.connection_handling_timeout.is_some() {
     info!(
-      "Force connection handling timeout: {} sec",
-      proxy_config.connection_handling_timeout.as_secs()
+      "Force connection handling timeout: {:?} sec",
+      proxy_config.connection_handling_timeout.unwrap_or_default().as_secs()
     );
   }
   #[cfg(any(feature = "http3-quinn", feature = "http3-s2n"))]
diff --git a/rpxy-lib/src/proxy/proxy_h3.rs b/rpxy-lib/src/proxy/proxy_h3.rs
index 8b8b686..1e0f24f 100644
--- a/rpxy-lib/src/proxy/proxy_h3.rs
+++ b/rpxy-lib/src/proxy/proxy_h3.rs
@@ -70,12 +70,12 @@ where
           let self_inner = self.clone();
           let tls_server_name_inner = tls_server_name.clone();
           self.globals.runtime_handle.spawn(async move {
-            if let Err(e) = tokio::time::timeout(
-              self_inner.globals.proxy_config.connection_handling_timeout,
-              self_inner.h3_serve_stream(req, stream, client_addr, tls_server_name_inner),
-            )
-            .await
-            {
+            let fut = self_inner.h3_serve_stream(req, stream, client_addr, tls_server_name_inner);
+            if let Some(connection_handling_timeout) = self_inner.globals.proxy_config.connection_handling_timeout {
+              if let Err(e) = tokio::time::timeout(connection_handling_timeout, fut).await {
+                warn!("HTTP/3 error on serve stream: {}", e);
+              };
+            } else if let Err(e) = fut.await {
               warn!("HTTP/3 error on serve stream: {}", e);
             }
             request_count.decrement();
diff --git a/rpxy-lib/src/proxy/proxy_main.rs b/rpxy-lib/src/proxy/proxy_main.rs
index c3d2143..67eeb30 100644
--- a/rpxy-lib/src/proxy/proxy_main.rs
+++ b/rpxy-lib/src/proxy/proxy_main.rs
@@ -91,24 +91,25 @@ where
     let handling_timeout = self.globals.proxy_config.connection_handling_timeout;
 
     self.globals.runtime_handle.clone().spawn(async move {
-      timeout(
-        handling_timeout,
-        server_clone.serve_connection_with_upgrades(
-          stream,
-          service_fn(move |req: Request<Incoming>| {
-            serve_request(
-              req,
-              message_handler_clone.clone(),
-              peer_addr,
-              listening_on,
-              tls_enabled,
-              tls_server_name.clone(),
-            )
-          }),
-        ),
-      )
-      .await
-      .ok();
+      let fut = server_clone.serve_connection_with_upgrades(
+        stream,
+        service_fn(move |req: Request<Incoming>| {
+          serve_request(
+            req,
+            message_handler_clone.clone(),
+            peer_addr,
+            listening_on,
+            tls_enabled,
+            tls_server_name.clone(),
+          )
+        }),
+      );
+
+      if let Some(handling_timeout) = handling_timeout {
+        timeout(handling_timeout, fut).await.ok();
+      } else {
+        fut.await.ok();
+      }
 
       request_count.decrement();
       debug!("Request processed: current # {}", request_count.current());
diff --git a/submodules/s2n-quic-h3/Cargo.toml b/submodules/s2n-quic-h3/Cargo.toml
index e863ca5..59a5403 100644
--- a/submodules/s2n-quic-h3/Cargo.toml
+++ b/submodules/s2n-quic-h3/Cargo.toml
@@ -13,5 +13,5 @@ publish = false
 bytes = { version = "1", default-features = false }
 futures = { version = "0.3", default-features = false }
 h3 = { path = "../h3/h3/" }
-s2n-quic = "1.32.0"
-s2n-quic-core = "0.32.0"
+s2n-quic = "1.33.0"
+s2n-quic-core = "0.33.0"