diff --git a/src/signature.rs b/src/signature.rs
index 48129de..c917db6 100644
--- a/src/signature.rs
+++ b/src/signature.rs
@@ -1,5 +1,5 @@
 use std::{
-    io::{Read, Write},
+    io::Read,
     ops::{Deref, DerefMut},
 };