diff --git a/Cargo.toml b/Cargo.toml
index cf050ed6c..a5642e507 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-web"
-version = "0.4.0"
+version = "0.4.1"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Actix web is a small, pragmatic, extremely fast, web framework for Rust."
 readme = "README.md"
diff --git a/src/server/utils.rs b/src/server/utils.rs
index 79e0a11c5..5bb59521b 100644
--- a/src/server/utils.rs
+++ b/src/server/utils.rs
@@ -4,8 +4,8 @@ use futures::{Async, Poll};
 
 use super::IoStream;
 
-const LW_BUFFER_SIZE: usize = 4096;
-const HW_BUFFER_SIZE: usize = 16_384;
+const LW_BUFFER_SIZE: usize = 8192;
+const HW_BUFFER_SIZE: usize = 32_768;
 
 
 pub fn read_from_io<T: IoStream>(io: &mut T, buf: &mut BytesMut) -> Poll<usize, io::Error> {