diff --git a/Cargo.toml b/Cargo.toml
index 9156ceb..396a7b8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "may_rpc"
-version = "0.1.1"
+version = "0.1.2"
 edition = "2021"
 authors = ["Xudong Huang <huangxu008@hotmail.com>"]
 license = "MIT"
diff --git a/may_rpc_derive/Cargo.toml b/may_rpc_derive/Cargo.toml
index fbbb295..c2e3216 100644
--- a/may_rpc_derive/Cargo.toml
+++ b/may_rpc_derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "may_rpc_derive"
-version = "0.1.1"
+version = "0.1.2"
 edition = "2021"
 authors = ["Xudong Huang <huangxu008@hotmail.com>"]
 license = "MIT"
diff --git a/src/conetty/mod.rs b/src/conetty/mod.rs
index b338ffe..20a50f6 100644
--- a/src/conetty/mod.rs
+++ b/src/conetty/mod.rs
@@ -14,7 +14,7 @@
 pub use errors::{Error, WireError};
 pub use frame::{Frame, ReqBuf, RspBuf};
 pub use multiplex_client::MultiplexClient;
-pub use server::{TcpServer, UdpServer};
+pub use server::{ServerInstance, TcpServer, UdpServer};
 pub use stream_client::StreamClient;
 pub use stream_ext::StreamExt;
 pub use udp_client::UdpClient;
diff --git a/src/lib.rs b/src/lib.rs
index a00bc97..4e9153c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -32,6 +32,6 @@ pub use serde;
 
 pub use conetty::{
     Client, Error, Frame, MultiplexClient, ReqBuf, RspBuf, Server, StreamClient, StreamExt,
-    TcpServer, UdpClient, UdpServer, UdsServer, WireError,
+    TcpServer, UdpClient, UdpServer, UdsServer, WireError, ServerInstance
 };
 pub use may_rpc_derive::{service, Server};