diff --git a/Cargo.lock b/Cargo.lock
index 185003693cd..da46091539a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3935,6 +3935,16 @@ version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8355be11b20d696c8f18f6cc018c4e372165b1fa8126cef092399c9951984ffa"
 
+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.39"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23aa6811d3bd4deb8a84dde645f943476d13b248d818edcf8ce0b2f37f036b44"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "libp2p-identity"
 version = "0.2.9"
@@ -4113,6 +4123,15 @@ dependencies = [
  "syn 2.0.87",
 ]
 
+[[package]]
+name = "mimalloc"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68914350ae34959d83f732418d51e2427a794055d0b9529f48259ac07af65633"
+dependencies = [
+ "libmimalloc-sys",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.17"
@@ -4869,6 +4888,7 @@ dependencies = [
  "indicatif",
  "indoc",
  "miette",
+ "mimalloc",
  "minicbor",
  "mockito",
  "nix 0.29.0",
@@ -7305,6 +7325,7 @@ name = "stress-test"
 version = "0.1.0"
 dependencies = [
  "clap",
+ "mimalloc",
  "ockam",
  "ockam_api",
  "ockam_core",
diff --git a/implementations/rust/ockam/ockam_command/Cargo.toml b/implementations/rust/ockam/ockam_command/Cargo.toml
index 4095e79d1f3..cc7a4c46cea 100644
--- a/implementations/rust/ockam/ockam_command/Cargo.toml
+++ b/implementations/rust/ockam/ockam_command/Cargo.toml
@@ -63,6 +63,7 @@ hex = "0.4"
 indicatif = "0.17.8"
 indoc = "2.0.5"
 miette = { version = "7.2.0", features = ["fancy-no-backtrace"] }
+mimalloc = { version = "0.1", features = ["secure"] }
 minicbor = { version = "0.25.1", default-features = false, features = ["alloc", "derive"] }
 nix = { version = "0.29", features = ["signal"] }
 ockam = { path = "../ockam", version = "^0.141.0", features = ["software_vault"] }
diff --git a/implementations/rust/ockam/ockam_command/src/bin/ockam.rs b/implementations/rust/ockam/ockam_command/src/bin/ockam.rs
index b5169010620..04d273d49b3 100644
--- a/implementations/rust/ockam/ockam_command/src/bin/ockam.rs
+++ b/implementations/rust/ockam/ockam_command/src/bin/ockam.rs
@@ -2,8 +2,12 @@
 // binary names. The issue is that we need to avoid the `ockam` binary colliding
 // with the `ockam` crate.
 
+use mimalloc::MiMalloc;
 use ockam_command::util::exitcode;
 
+#[global_allocator]
+static GLOBAL: MiMalloc = MiMalloc;
+
 fn main() {
     if let Err(e) = ockam_command::entry_point::run() {
         // initialization errors are displayed here
diff --git a/tools/stress-test/Cargo.toml b/tools/stress-test/Cargo.toml
index 0e56f027c11..47a5086b437 100644
--- a/tools/stress-test/Cargo.toml
+++ b/tools/stress-test/Cargo.toml
@@ -13,6 +13,7 @@ rust-crypto = ["ockam/rust-crypto"]
 
 [dependencies]
 clap = { version = "4.5", features = ["derive", "cargo"] }
+mimalloc = { version = "0.1", features = ["secure"] }
 ockam = { path = "../../implementations/rust/ockam/ockam" }
 ockam_api = { path = "../../implementations/rust/ockam/ockam_api" }
 ockam_core = { path = "../../implementations/rust/ockam/ockam_core" }
diff --git a/tools/stress-test/src/main.rs b/tools/stress-test/src/main.rs
index 135c98febf8..410565202dc 100644
--- a/tools/stress-test/src/main.rs
+++ b/tools/stress-test/src/main.rs
@@ -23,6 +23,11 @@ mod execution;
 mod portal_simulator;
 mod stats;
 
+use mimalloc::MiMalloc;
+
+#[global_allocator]
+static GLOBAL: MiMalloc = MiMalloc;
+
 #[derive(Debug, Args, Clone)]
 struct RunCommand {
     config: PathBuf,