diff --git a/swarm/CHANGELOG.md b/swarm/CHANGELOG.md
index 6bcdc66106d..875fd7a3be6 100644
--- a/swarm/CHANGELOG.md
+++ b/swarm/CHANGELOG.md
@@ -1,5 +1,7 @@
 ## 0.44.0 - unreleased
 
+- Remove deprecated `keep_alive_timeout` in `OneShotHandlerConfig`.
+  See [PR 4677](https://github.com/libp2p/rust-libp2p/pull/4677).
 
 ## 0.43.6
 
diff --git a/swarm/src/handler/one_shot.rs b/swarm/src/handler/one_shot.rs
index 473aa50798c..7f422cfa7d0 100644
--- a/swarm/src/handler/one_shot.rs
+++ b/swarm/src/handler/one_shot.rs
@@ -24,7 +24,6 @@ use crate::handler::{
     SubstreamProtocol,
 };
 use crate::upgrade::{InboundUpgradeSend, OutboundUpgradeSend};
-use instant::Instant;
 use smallvec::SmallVec;
 use std::{error, fmt::Debug, task::Context, task::Poll, time::Duration};
 
@@ -176,9 +175,8 @@ where
         } else {
             self.dial_queue.shrink_to_fit();
 
-            #[allow(deprecated)]
             if self.dial_negotiated == 0 && self.keep_alive.is_yes() {
-                self.keep_alive = KeepAlive::Until(Instant::now() + self.config.keep_alive_timeout);
+                self.keep_alive = KeepAlive::No;
             }
         }
 
@@ -199,13 +197,6 @@ where
                 protocol: out,
                 ..
             }) => {
-                // If we're shutting down the connection for inactivity, reset the timeout.
-                #[allow(deprecated)]
-                if !self.keep_alive.is_yes() {
-                    self.keep_alive =
-                        KeepAlive::Until(Instant::now() + self.config.keep_alive_timeout);
-                }
-
                 self.events_out.push(out.into());
             }
             ConnectionEvent::FullyNegotiatedOutbound(FullyNegotiatedOutbound {
@@ -232,11 +223,6 @@ where
 /// Configuration parameters for the `OneShotHandler`
 #[derive(Debug)]
 pub struct OneShotHandlerConfig {
-    /// Keep-alive timeout for idle connections.
-    #[deprecated(
-        note = "Set a global idle connection timeout via `SwarmBuilder::idle_connection_timeout` instead."
-    )]
-    pub keep_alive_timeout: Duration,
     /// Timeout for outbound substream upgrades.
     pub outbound_substream_timeout: Duration,
     /// Maximum number of concurrent outbound substreams being opened.
@@ -247,7 +233,6 @@ impl Default for OneShotHandlerConfig {
     #[allow(deprecated)]
     fn default() -> Self {
         OneShotHandlerConfig {
-            keep_alive_timeout: Duration::from_secs(10),
             outbound_substream_timeout: Duration::from_secs(10),
             max_dial_negotiated: 8,
         }
@@ -277,9 +262,6 @@ mod tests {
             }
         }));
 
-        assert!(matches!(
-            handler.connection_keep_alive(),
-            KeepAlive::Until(_)
-        ));
+        assert!(matches!(handler.connection_keep_alive(), KeepAlive::No));
     }
 }