diff --git a/Cargo.lock b/Cargo.lock
index 367d37b0ec2..efa620c9f41 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -428,9 +428,9 @@ dependencies = [
 
 [[package]]
 name = "async-std-resolver"
-version = "0.24.1"
+version = "0.24.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc3b454643291f9a4a3bbdb35fa62efa4ba7be5ea13fe243e3be4352182ff4b8"
+checksum = "3c0ed2b6671c13d2c28756c5a64e04759c1e0b5d3d7ac031f521c3561e21fbcb"
 dependencies = [
  "async-std",
  "async-trait",
@@ -3353,7 +3353,7 @@ dependencies = [
 
 [[package]]
 name = "libp2p-tcp"
-version = "0.41.1"
+version = "0.42.0"
 dependencies = [
  "async-io 2.3.3",
  "async-std",
@@ -4728,9 +4728,9 @@ dependencies = [
 
 [[package]]
 name = "rayon"
-version = "1.8.0"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c27db03db7734835b3f53954b534c91069375ce6ccaa2e065441e07d9b6cdb1"
+checksum = "b418a60154510ca1a002a752ca9714984e21e4241e804d32555251faf8b78ffa"
 dependencies = [
  "either",
  "rayon-core",
@@ -4738,9 +4738,9 @@ dependencies = [
 
 [[package]]
 name = "rayon-core"
-version = "1.12.0"
+version = "1.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ce3fb6ad83f861aac485e76e1985cd109d9a3713802152be56c3b1f0e0658ed"
+checksum = "1465873a3dfdaa8ae7cb14b4383657caab0b3e8a0aa9ae8e04b044854c8dfce2"
 dependencies = [
  "crossbeam-deque",
  "crossbeam-utils",
@@ -5806,9 +5806,9 @@ dependencies = [
 
 [[package]]
 name = "sysinfo"
-version = "0.30.5"
+version = "0.30.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fb4f3438c8f6389c864e61221cbc97e9bca98b4daf39a5beb7bea660f528bb2"
+checksum = "732ffa00f53e6b2af46208fba5718d9662a421049204e156328b66791ffa15ae"
 dependencies = [
  "cfg-if",
  "core-foundation-sys",
diff --git a/Cargo.toml b/Cargo.toml
index bf57480bbbe..3f7d8ab7c0d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -105,7 +105,7 @@ libp2p-stream = { version = "0.1.0-alpha.1", path = "protocols/stream" }
 libp2p-swarm = { version = "0.45.0", path = "swarm" }
 libp2p-swarm-derive = { version = "=0.34.2", path = "swarm-derive" } # `libp2p-swarm-derive` may not be compatible with different `libp2p-swarm` non-breaking releases. E.g. `libp2p-swarm` might introduce a new enum variant `FromSwarm` (which is `#[non-exhaustive]`) in a non-breaking release. Older versions of `libp2p-swarm-derive` would not forward this enum variant within the `NetworkBehaviour` hierarchy. Thus the version pinning is required.
 libp2p-swarm-test = { version = "0.3.0", path = "swarm-test" }
-libp2p-tcp = { version = "0.41.1", path = "transports/tcp" }
+libp2p-tcp = { version = "0.42.0", path = "transports/tcp" }
 libp2p-tls = { version = "0.4.0", path = "transports/tls" }
 libp2p-uds = { version = "0.40.0", path = "transports/uds" }
 libp2p-upnp = { version = "0.2.2", path = "protocols/upnp" }
diff --git a/transports/tcp/CHANGELOG.md b/transports/tcp/CHANGELOG.md
index 36ed93a0f5b..f0204f1ba85 100644
--- a/transports/tcp/CHANGELOG.md
+++ b/transports/tcp/CHANGELOG.md
@@ -1,5 +1,7 @@
-## 0.41.1
+## 0.42.0
 
+- Disable Nagle's algorithm (i.e. `TCP_NODELAY`) by default.
+  See [PR 4916](https://github.com/libp2p/rust-libp2p/pull/4916)
 
 ## 0.41.0
 
diff --git a/transports/tcp/Cargo.toml b/transports/tcp/Cargo.toml
index 7f0cf5ca943..b17d7f3b58e 100644
--- a/transports/tcp/Cargo.toml
+++ b/transports/tcp/Cargo.toml
@@ -3,7 +3,7 @@ name = "libp2p-tcp"
 edition = "2021"
 rust-version = { workspace = true }
 description = "TCP/IP transport protocol for libp2p"
-version = "0.41.1"
+version = "0.42.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 license = "MIT"
 repository = "https://github.com/libp2p/rust-libp2p"
diff --git a/transports/tcp/src/lib.rs b/transports/tcp/src/lib.rs
index c8f0410d9e5..3d881a6421c 100644
--- a/transports/tcp/src/lib.rs
+++ b/transports/tcp/src/lib.rs
@@ -161,7 +161,7 @@ impl Config {
     pub fn new() -> Self {
         Self {
             ttl: None,
-            nodelay: None,
+            nodelay: Some(false), // Disable Nagle's algorithm by default
             backlog: 1024,
             enable_port_reuse: false,
         }