diff --git a/Cargo.lock b/Cargo.lock
index 2ad70c5ff..41afe519d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6270,7 +6270,7 @@ dependencies = [
 
 [[package]]
 name = "zcash_protocol"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "document-features",
  "incrementalmerkletree",
diff --git a/Cargo.toml b/Cargo.toml
index f53945e62..6b11b660a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -37,7 +37,7 @@ zcash_address = { version = "0.6", path = "components/zcash_address" }
 zcash_client_backend = { version = "0.14", path = "zcash_client_backend" }
 zcash_encoding = { version = "0.2.1", path = "components/zcash_encoding" }
 zcash_keys = { version = "0.4", path = "zcash_keys" }
-zcash_protocol = { version = "0.4", path = "components/zcash_protocol" }
+zcash_protocol = { version = "0.4.1", path = "components/zcash_protocol" }
 zip321 = { version = "0.2", path = "components/zip321" }
 
 zcash_note_encryption = "0.4"
diff --git a/components/zcash_protocol/CHANGELOG.md b/components/zcash_protocol/CHANGELOG.md
index 3291d5f9d..7a03fb52e 100644
--- a/components/zcash_protocol/CHANGELOG.md
+++ b/components/zcash_protocol/CHANGELOG.md
@@ -7,15 +7,13 @@ and this library adheres to Rust's notion of
 
 ## [Unreleased]
 
+## [0.4.1] - 2024-11-13
 ### Added
 - `zcash_protocol::value::QuotRem`
 - `zcash_protocol::value::Zatoshis::div_with_remainder`
 - `impl Mul<u64> for zcash_protocol::value::Zatoshis`
 - `impl Div<NonZeroU64> for zcash_protocol::value::Zatoshis`
 
-### Changed
-- MSRV is now 1.77.0.
-
 ## [0.4.0] - 2024-10-02
 ### Added
 - `impl Sub<BlockHeight> for BlockHeight` unlike the implementation that was
diff --git a/components/zcash_protocol/Cargo.toml b/components/zcash_protocol/Cargo.toml
index 5424e16cb..6017231b4 100644
--- a/components/zcash_protocol/Cargo.toml
+++ b/components/zcash_protocol/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "zcash_protocol"
 description = "Zcash protocol network constants and value types."
-version = "0.4.0"
+version = "0.4.1"
 authors = [
     "Jack Grigg <jack@electriccoin.co>",
     "Kris Nuttycombe <kris@nutty.land>",
@@ -11,7 +11,7 @@ repository.workspace = true
 readme = "README.md"
 license.workspace = true
 edition.workspace = true
-rust-version.workspace = true
+rust-version = "1.70"
 categories = ["cryptography::cryptocurrencies"]
 keywords = ["zcash"]
 
diff --git a/supply-chain/imports.lock b/supply-chain/imports.lock
index 4b620a945..762aba7d9 100644
--- a/supply-chain/imports.lock
+++ b/supply-chain/imports.lock
@@ -321,8 +321,8 @@ user-login = "str4d"
 user-name = "Jack Grigg"
 
 [[publisher.zcash_protocol]]
-version = "0.4.0"
-when = "2024-10-02"
+version = "0.4.1"
+when = "2024-11-14"
 user-id = 169181
 user-login = "nuttycom"
 user-name = "Kris Nuttycombe"