diff --git a/src/tools/ticket.rs b/src/tools/ticket.rs
index 07a263b9..bada0efa 100644
--- a/src/tools/ticket.rs
+++ b/src/tools/ticket.rs
@@ -5,7 +5,6 @@ use std::io;
 use std::marker::PhantomData;
 
 use anyhow::{bail, format_err, Error};
-use base64;
 use openssl::hash::MessageDigest;
 use openssl::pkey::{HasPublic, PKey, Private};
 use openssl::sign::{Signer, Verifier};