diff --git a/Cargo.lock b/Cargo.lock
index 30a5608ed..ed3c2f7ae 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2552,7 +2552,7 @@ dependencies = [
 [[package]]
 name = "zcash_note_encryption"
 version = "0.4.0"
-source = "git+https://github.com/QED-it/zcash_note_encryption?branch=return-ref-from-enc-ciphertext#3a54c7281bacf59fe8dcffc6d9b82db60ae465f6"
+source = "git+https://github.com/QED-it/zcash_note_encryption?branch=zsa1#76745f00551d4442dee11ad64a8400b75132d18f"
 dependencies = [
  "chacha20",
  "chacha20poly1305",
diff --git a/src/bundle/commitments.rs b/src/bundle/commitments.rs
index 953c9d474..1572987bd 100644
--- a/src/bundle/commitments.rs
+++ b/src/bundle/commitments.rs
@@ -2,13 +2,11 @@
 
 use blake2b_simd::{Hash as Blake2bHash, Params, State};
 
-use zcash_note_encryption_zsa::MEMO_SIZE;
-
 use crate::{
     bundle::{Authorization, Authorized, Bundle},
     issuance::{IssueAuth, IssueBundle, Signed},
     note::AssetBase,
-    note_encryption::OrchardDomainCommon,
+    note_encryption::{OrchardDomainCommon, MEMO_SIZE},
     orchard_flavor::{OrchardVanilla, OrchardZSA},
     value::NoteValue,
 };
diff --git a/src/note_encryption.rs b/src/note_encryption.rs
index 8f2607e89..26d293209 100644
--- a/src/note_encryption.rs
+++ b/src/note_encryption.rs
@@ -11,6 +11,8 @@ mod orchard_domain;
 mod orchard_domain_vanilla;
 mod orchard_domain_zsa;
 
+pub(crate) use domain::MEMO_SIZE;
+
 pub use {
     compact_action::CompactAction,
     orchard_domain::{OrchardDomain, OrchardDomainCommon},
diff --git a/src/note_encryption/compact_action.rs b/src/note_encryption/compact_action.rs
index 79227001a..36b919995 100644
--- a/src/note_encryption/compact_action.rs
+++ b/src/note_encryption/compact_action.rs
@@ -115,7 +115,7 @@ impl<D: OrchardDomainCommon> CompactAction<D> {
 pub mod testing {
     use rand::RngCore;
 
-    use zcash_note_encryption_zsa::{note_bytes::NoteBytes, Domain, NoteEncryption, MEMO_SIZE};
+    use zcash_note_encryption_zsa::{note_bytes::NoteBytes, Domain, NoteEncryption};
 
     use crate::{
         address::Address,
@@ -124,7 +124,7 @@ pub mod testing {
         value::NoteValue,
     };
 
-    use super::{CompactAction, OrchardDomain, OrchardDomainCommon};
+    use super::{CompactAction, OrchardDomain, OrchardDomainCommon, MEMO_SIZE};
 
     /// Creates a fake `CompactAction` paying the given recipient the specified value.
     ///
diff --git a/src/note_encryption/domain.rs b/src/note_encryption/domain.rs
index ec6dc8ad3..91d4ba4f2 100644
--- a/src/note_encryption/domain.rs
+++ b/src/note_encryption/domain.rs
@@ -8,7 +8,7 @@ use blake2b_simd::Params;
 
 use zcash_note_encryption_zsa::{
     note_bytes::NoteBytes, BatchDomain, Domain, EphemeralKeyBytes, OutPlaintextBytes,
-    OutgoingCipherKey, MEMO_SIZE, OUT_PLAINTEXT_SIZE,
+    OutgoingCipherKey, OUT_PLAINTEXT_SIZE,
 };
 
 use crate::{
@@ -51,6 +51,9 @@ pub(super) const NOTE_VERSION_BYTE_V2: u8 = 0x02;
 /// The version byte for ZSA.
 pub(super) const NOTE_VERSION_BYTE_V3: u8 = 0x03;
 
+/// The size of the memo.
+pub(crate) const MEMO_SIZE: usize = 512;
+
 pub(super) type Memo = [u8; MEMO_SIZE];
 
 /// Defined in [Zcash Protocol Spec § 5.4.2: Pseudo Random Functions][concreteprfs].
diff --git a/src/note_encryption/orchard_domain.rs b/src/note_encryption/orchard_domain.rs
index 7ee11530a..e56f15cd1 100644
--- a/src/note_encryption/orchard_domain.rs
+++ b/src/note_encryption/orchard_domain.rs
@@ -3,7 +3,7 @@
 
 use core::fmt;
 
-use zcash_note_encryption_zsa::{note_bytes::NoteBytes, AEAD_TAG_SIZE, MEMO_SIZE};
+use zcash_note_encryption_zsa::{note_bytes::NoteBytes, AEAD_TAG_SIZE};
 
 use crate::{
     action::Action,
@@ -11,7 +11,10 @@ use crate::{
     Note,
 };
 
-use super::{compact_action::CompactAction, domain::Memo};
+use super::{
+    compact_action::CompactAction,
+    domain::{Memo, MEMO_SIZE},
+};
 
 /// Represents the Orchard protocol domain specifics required for note encryption and decryption.
 pub trait OrchardDomainCommon: fmt::Debug + Clone {