diff --git a/Cargo.lock b/Cargo.lock
index 507141ef..3b6acbe9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -90,6 +90,15 @@ dependencies = [
  "derive_arbitrary",
 ]
 
+[[package]]
+name = "array-init"
+version = "0.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23589ecb866b460d3a0f1278834750268c607e8e28a1b982c907219f3178cd72"
+dependencies = [
+ "nodrop",
+]
+
 [[package]]
 name = "arrayref"
 version = "0.3.9"
@@ -1227,7 +1236,7 @@ checksum = "34080505efa8e45a4b816c349525ebe327ceaa8559756f0356cba97ef3bf7432"
 
 [[package]]
 name = "masp_note_encryption"
-version = "3.0.9"
+version = "3.0.10"
 dependencies = [
  "arbitrary",
  "borsh",
@@ -1241,7 +1250,7 @@ dependencies = [
 
 [[package]]
 name = "masp_primitives"
-version = "3.0.9"
+version = "3.0.10"
 dependencies = [
  "aes",
  "arbitrary",
@@ -1270,6 +1279,8 @@ dependencies = [
  "rand 0.8.5",
  "rand_core 0.6.4",
  "rand_xorshift 0.3.0",
+ "serde",
+ "serde-hex",
  "sha2",
  "subtle",
  "zcash_encoding",
@@ -1277,7 +1288,7 @@ dependencies = [
 
 [[package]]
 name = "masp_proofs"
-version = "3.0.9"
+version = "3.0.10"
 dependencies = [
  "blake2b_simd",
  "byteorder",
@@ -1301,6 +1312,12 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "maybe-uninit"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
+
 [[package]]
 name = "memchr"
 version = "2.7.5"
@@ -1509,6 +1526,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "nodrop"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
+
 [[package]]
 name = "nonempty"
 version = "0.7.0"
@@ -1649,7 +1672,7 @@ dependencies = [
  "cfg-if",
  "libc",
  "redox_syscall",
- "smallvec",
+ "smallvec 1.15.1",
  "windows-link",
 ]
 
@@ -1761,7 +1784,7 @@ dependencies = [
  "log",
  "nix",
  "once_cell",
- "smallvec",
+ "smallvec 1.15.1",
  "spin 0.10.0",
  "symbolic-demangle",
  "tempfile",
@@ -2161,28 +2184,39 @@ checksum = "d767eb0aabc880b29956c35734170f26ed551a859dbd361d140cdbeca61ab1e2"
 
 [[package]]
 name = "serde"
-version = "1.0.225"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd6c24dee235d0da097043389623fb913daddf92c76e9f5a1db88607a0bcbd1d"
+checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
 dependencies = [
  "serde_core",
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-hex"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca37e3e4d1b39afd7ff11ee4e947efae85adfddf4841787bfa47c470e96dc26d"
+dependencies = [
+ "array-init",
+ "serde",
+ "smallvec 0.6.14",
+]
+
 [[package]]
 name = "serde_core"
-version = "1.0.225"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "659356f9a0cb1e529b24c01e43ad2bdf520ec4ceaf83047b83ddcc2251f96383"
+checksum = "41d385c7d4ca58e59fc732af25c3983b67ac852c1a25000afe1175de458b67ad"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.225"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ea936adf78b1f766949a4977b91d2f5595825bd6ec079aa9543ad2685fc4516"
+checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2229,6 +2263,15 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "smallvec"
+version = "0.6.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b97fcaeba89edba30f044a10c6a3cc39df9c3f17d7cd829dd1446cab35f890e0"
+dependencies = [
+ "maybe-uninit",
+]
+
 [[package]]
 name = "smallvec"
 version = "1.15.1"
diff --git a/Cargo.toml b/Cargo.toml
index 8266dce3..70bb7461 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ members = [
 
 
 [workspace.package]
-version = "3.0.9"
+version = "3.0.10"
 
 [profile.release]
 lto = true
diff --git a/masp_primitives/Cargo.toml b/masp_primitives/Cargo.toml
index b6b35488..c7460089 100644
--- a/masp_primitives/Cargo.toml
+++ b/masp_primitives/Cargo.toml
@@ -73,6 +73,8 @@ blake2s_simd = "1"
 aes = "0.8"
 fpe = "0.6"
 
+serde = {version = "1.0.228", features = ["derive"], optional = true}
+serde-hex = {version = "0.1.0", optional = true}
 borsh = {version = "1.2.0", features = ["unstable__schema", "derive"]}
 arbitrary = {version = "1.3", features = ["derive"], optional = true }
 
@@ -89,6 +91,7 @@ assert_matches = "1.3.0"
 rand_xorshift = "0.3"
 
 [features]
+serde = ["dep:serde", "dep:serde-hex"]
 transparent-inputs = []
 test-dependencies = ["proptest"]
 default = ["transparent-inputs"]
diff --git a/masp_primitives/src/sapling.rs b/masp_primitives/src/sapling.rs
index c4c4ef90..575931f3 100644
--- a/masp_primitives/src/sapling.rs
+++ b/masp_primitives/src/sapling.rs
@@ -17,6 +17,10 @@ use group::{Curve, Group, GroupEncoding, cofactor::CofactorGroup};
 use incrementalmerkletree::{self, Level};
 use lazy_static::lazy_static;
 use rand_core::{CryptoRng, RngCore};
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
+#[cfg(feature = "serde")]
+use serde_hex::{SerHex, Strict};
 use std::{
     array::TryFromSliceError,
     cmp::Ordering,
@@ -85,9 +89,12 @@ pub fn merkle_hash(depth: usize, lhs: &[u8; 32], rhs: &[u8; 32]) -> [u8; 32] {
 }
 
 /// A node within the Sapling commitment tree.
-#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 #[derive(Clone, Copy, Debug, PartialEq, Eq, BorshSerialize, BorshDeserialize, Default)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[repr(transparent)]
 pub struct Node {
+    #[cfg_attr(feature = "serde", serde(with = "SerHex::<Strict>"))]
     repr: [u8; 32],
 }