diff --git a/benches/client.rs b/benches/client.rs
index 0363a6ce..ab952799 100644
--- a/benches/client.rs
+++ b/benches/client.rs
@@ -1,5 +1,5 @@
 #![deny(warnings)]
-#![feature(collections, io, net, test)]
+#![feature(collections, test)]
 extern crate hyper;
 
 extern crate test;
diff --git a/benches/server.rs b/benches/server.rs
index 023b5fc3..74f31558 100644
--- a/benches/server.rs
+++ b/benches/server.rs
@@ -1,5 +1,5 @@
 #![deny(warnings)]
-#![feature(net, test)]
+#![feature(test)]
 extern crate hyper;
 extern crate test;