diff --git a/crates/router/Cargo.toml b/crates/router/Cargo.toml
index e199f62af4..70ae5edc67 100644
--- a/crates/router/Cargo.toml
+++ b/crates/router/Cargo.toml
@@ -45,6 +45,7 @@ http = "0.2.8"
 josekit = "0.8.1"
 literally = "0.1.3"
 maud = { version = "0.24", features = ["actix-web"] }
+mimalloc = { version = "0.1", optional = true }
 mime = "0.3.16"
 nanoid = "0.4.0"
 once_cell = "1.16.0"
diff --git a/crates/router/src/lib.rs b/crates/router/src/lib.rs
index 871fc621c2..6e87de86e2 100644
--- a/crates/router/src/lib.rs
+++ b/crates/router/src/lib.rs
@@ -50,6 +50,10 @@ use crate::{
     core::errors::{self, BachResult},
 };
 
+#[cfg(feature = "mimalloc")]
+#[global_allocator]
+static ALLOC: mimalloc::MiMalloc = mimalloc::MiMalloc;
+
 /// Header Constants
 pub mod headers {
     pub const X_API_KEY: &str = "X-API-KEY";