diff --git a/go.mod b/go.mod
index 641c6e5..80c5512 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/docker/libcontainer v2.2.1+incompatible
 	github.com/gin-contrib/cors v1.3.1
 	github.com/gin-gonic/gin v1.7.7
-	github.com/go-gost/core v0.0.0-20220405095520-c2f49e94443c
+	github.com/go-gost/core v0.0.0-20220405145417-b88025ea6d67
 	github.com/go-gost/gosocks4 v0.0.1
 	github.com/go-gost/gosocks5 v0.3.1-0.20211109033403-d894d75b7f09
 	github.com/go-gost/relay v0.1.1-0.20211123134818-8ef7fd81ffd7
diff --git a/go.sum b/go.sum
index 6701e65..21f1add 100644
--- a/go.sum
+++ b/go.sum
@@ -121,6 +121,8 @@ github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gost/core v0.0.0-20220405095520-c2f49e94443c h1:TzDyqefjnUVgdT6piHZgeXrVKXevawsMs0kmSZZhDR4=
 github.com/go-gost/core v0.0.0-20220405095520-c2f49e94443c/go.mod h1:/LzdiQ+0+3FMhyqw0phjFjXFdOa1fcQR5/bL/7ripCs=
+github.com/go-gost/core v0.0.0-20220405145417-b88025ea6d67 h1:qKtSDjOdQcNNLUTifLtI12fcZm6STp9Lsp5Bj962Gx0=
+github.com/go-gost/core v0.0.0-20220405145417-b88025ea6d67/go.mod h1:/LzdiQ+0+3FMhyqw0phjFjXFdOa1fcQR5/bL/7ripCs=
 github.com/go-gost/gosocks4 v0.0.1 h1:+k1sec8HlELuQV7rWftIkmy8UijzUt2I6t+iMPlGB2s=
 github.com/go-gost/gosocks4 v0.0.1/go.mod h1:3B6L47HbU/qugDg4JnoFPHgJXE43Inz8Bah1QaN9qCc=
 github.com/go-gost/gosocks5 v0.3.1-0.20211109033403-d894d75b7f09 h1:A95M6UWcfZgOuJkQ7QLfG0Hs5peWIUSysCDNz4pfe04=
diff --git a/internal/net/transport.go b/internal/net/transport.go
index 006a360..93674af 100644
--- a/internal/net/transport.go
+++ b/internal/net/transport.go
@@ -26,7 +26,7 @@ func Transport(rw1, rw2 io.ReadWriter) error {
 }
 
 func copyBuffer(dst io.Writer, src io.Reader) error {
-	buf := bufpool.Get(32 * 1024)
+	buf := bufpool.Get(4 * 1024)
 	defer bufpool.Put(buf)
 
 	_, err := io.CopyBuffer(dst, src, *buf)