diff --git a/src/lib.rs b/src/lib.rs
index 2a7757a..eb7f44e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,12 +1,7 @@
 #![no_std]
-// #![allow(unused)]
+#![allow(unused)]
 #![deny(broken_intra_doc_links)]
 
-extern crate bit_field;
-extern crate byteorder;
-extern crate embedded_hal;
-extern crate embedded_nal;
-
 #[macro_use(block)]
 extern crate nb;