diff --git a/src/lib.rs b/src/lib.rs
index 93c19fd..ecf26a6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -53,8 +53,8 @@ use serde::{Deserializer, Serializer};
 use smallvec::SmallVec;
 use std::iter::FromIterator;
 use std::{error, io, fmt};
+use std::marker::PhantomData;
 use serde::de::{Visitor};
-use serde::export::{PhantomData};
 
 /// Trait specifying custom serialization and deserialization logic from a
 /// hexadecimal string to some arbitrary type.  This trait can be used to apply