diff --git a/Cargo.toml b/Cargo.toml
index 5e9b6ac..0ee5f79 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,6 +27,7 @@ hickory-proto = "0.24"
 httparse = "1"
 ipstack = { version = "0.1" }
 log = { version = "0.4", features = ["std"] }
+mimalloc = { version = "0.1", default-features = false, optional = true }
 percent-encoding = "2"
 socks5-impl = { version = "0.5" }
 thiserror = "1"
diff --git a/src/lib.rs b/src/lib.rs
index 5f66aad..3df7040 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -30,6 +30,10 @@ pub use {
     traffic_status::{tun2proxy_set_traffic_status_callback, TrafficStatus},
 };
 
+#[cfg(feature = "mimalloc")]
+#[global_allocator]
+static ALLOC: mimalloc::MiMalloc = mimalloc::MiMalloc;
+
 #[cfg(any(target_os = "windows", target_os = "macos", target_os = "linux"))]
 pub use desktop_api::desktop_run_async;