diff --git a/Cargo.toml b/Cargo.toml
index feb3dc3..70c94fc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ categories = ["web-programming::http-client"]
 [dependencies]
 bytes = "0.4"
 futures = "0.1.15"
-hyper = "0.11"
+hyper = "0.11.9"
 hyper-tls = "0.1.2"
 libflate = "0.1.11"
 log = "0.3"
diff --git a/src/async_impl/client.rs b/src/async_impl/client.rs
index 9d1d57c..16204f7 100644
--- a/src/async_impl/client.rs
+++ b/src/async_impl/client.rs
@@ -133,6 +133,7 @@ impl ClientBuilder {
 
         let hyper_client = ::hyper::Client::configure()
             .connector(connector)
+            .no_proto()
             .build(handle);
 
         Ok(Client {