diff --git a/src/merkle_tree.rs b/src/merkle_tree.rs
index f1fe729..b435a75 100644
--- a/src/merkle_tree.rs
+++ b/src/merkle_tree.rs
@@ -10,7 +10,7 @@ use std::{
 };
 
 use num_bigint::BigInt;
-use serde::Serialize;
+use serde::{Serialize, Deserialize};
 
 /// Hash types, values and algorithms for a Merkle tree
 pub trait Hasher {
@@ -35,7 +35,7 @@ pub struct MerkleTree<H: Hasher> {
 }
 
 /// Element of a Merkle proof
-#[derive(Clone, Copy, PartialEq, Eq, Serialize)]
+#[derive(Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
 pub enum Branch<H: Hasher> {
     /// Left branch taken, value is the right sibling hash.
     Left(H::Hash),
diff --git a/src/poseidon_tree.rs b/src/poseidon_tree.rs
index 2934bae..c3da2d3 100644
--- a/src/poseidon_tree.rs
+++ b/src/poseidon_tree.rs
@@ -5,7 +5,7 @@ use crate::{
 use ff::{PrimeField, PrimeFieldRepr};
 use once_cell::sync::Lazy;
 use poseidon_rs::{Fr, FrRepr, Poseidon};
-use serde::Serialize;
+use serde::{Serialize, Deserialize};
 
 static POSEIDON: Lazy<Poseidon> = Lazy::new(Poseidon::new);
 
@@ -16,7 +16,7 @@ pub type Branch = merkle_tree::Branch<PoseidonHash>;
 #[allow(dead_code)]
 pub type Proof = merkle_tree::Proof<PoseidonHash>;
 
-#[derive(Clone, Copy, PartialEq, Eq, Serialize)]
+#[derive(Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
 pub struct PoseidonHash;
 
 #[allow(clippy::fallible_impl_from)] // TODO