diff --git a/Cargo.toml b/Cargo.toml
index 1d82967..840c6a0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "serde_bare"
-version = "0.3.0"
+version = "0.3.1-rei"
 authors = ["Tadeo Kondrak <me@tadeo.ca>"]
 license = "MIT OR Apache-2.0"
 edition = "2018"
diff --git a/src/lib.rs b/src/lib.rs
index 048d00e..5dd0844 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -29,7 +29,7 @@ pub use error::{Error, Result};
 #[doc(inline)]
 pub use ser::{to_vec, to_writer, Serializer};
 
-#[derive(Copy, Clone, Debug, Ord, PartialOrd, Eq, PartialEq)]
+#[derive(Copy, Clone, Debug, Ord, PartialOrd, Eq, PartialEq, Hash)]
 pub struct Uint(pub u64);
 
 impl Default for Uint {