diff --git a/zcash_client_backend/CHANGELOG.md b/zcash_client_backend/CHANGELOG.md
index a14312302..457f3dfcf 100644
--- a/zcash_client_backend/CHANGELOG.md
+++ b/zcash_client_backend/CHANGELOG.md
@@ -6,6 +6,8 @@ and this library adheres to Rust's notion of
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Changed
+- Bumped dependencies to `hdwallet 0.4`.
 
 ## [0.9.0] - 2023-04-28
 ### Added
diff --git a/zcash_client_backend/Cargo.toml b/zcash_client_backend/Cargo.toml
index d07c7944c..6ff2e12fd 100644
--- a/zcash_client_backend/Cargo.toml
+++ b/zcash_client_backend/Cargo.toml
@@ -36,7 +36,7 @@ bech32 = "0.9"
 bs58 = { version = "0.4", features = ["check"] }
 
 # - Errors
-hdwallet = { version = "0.3.1", optional = true }
+hdwallet = { version = "0.4", optional = true }
 
 # - Logging and metrics
 memuse = "0.2"
diff --git a/zcash_client_sqlite/CHANGELOG.md b/zcash_client_sqlite/CHANGELOG.md
index c52597061..5b396f697 100644
--- a/zcash_client_sqlite/CHANGELOG.md
+++ b/zcash_client_sqlite/CHANGELOG.md
@@ -6,6 +6,8 @@ and this library adheres to Rust's notion of
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Changed
+- Bumped dependencies to `hdwallet 0.4`.
 
 ## [0.7.0] - 2023-04-28
 ### Changed
diff --git a/zcash_client_sqlite/Cargo.toml b/zcash_client_sqlite/Cargo.toml
index ee55e2cd4..a144c1e1f 100644
--- a/zcash_client_sqlite/Cargo.toml
+++ b/zcash_client_sqlite/Cargo.toml
@@ -21,7 +21,7 @@ zcash_primitives = { version = "0.11", path = "../zcash_primitives", default-fea
 # (Breaking upgrades to these require a breaking upgrade to this crate.)
 # - Errors
 bs58 = { version = "0.4", features = ["check"] }
-hdwallet = { version = "0.3.1", optional = true }
+hdwallet = { version = "0.4", optional = true }
 
 # - Logging and metrics
 tracing = "0.1"
diff --git a/zcash_primitives/CHANGELOG.md b/zcash_primitives/CHANGELOG.md
index 22b750f91..b1cf2e126 100644
--- a/zcash_primitives/CHANGELOG.md
+++ b/zcash_primitives/CHANGELOG.md
@@ -7,6 +7,7 @@ and this library adheres to Rust's notion of
 
 ## [Unreleased]
 ### Changed
+- Bumped dependencies to `secp256k1 0.26`, `hdwallet 0.4`.
 - `zcash_primitives::transactions::component::amount::DEFAULT_FEE` increased zip317 
   minimum possible fee.
 
diff --git a/zcash_primitives/Cargo.toml b/zcash_primitives/Cargo.toml
index 7c2f9e4c5..a46008d71 100644
--- a/zcash_primitives/Cargo.toml
+++ b/zcash_primitives/Cargo.toml
@@ -55,9 +55,9 @@ proptest = { version = "1.0.0", optional = true }
 
 # - Transparent inputs
 #   - `Error` type exposed
-hdwallet = { version = "0.3.1", optional = true }
+hdwallet = { version = "0.4", optional = true }
 #   - `SecretKey` and `PublicKey` types exposed
-secp256k1 = { version = "0.21", optional = true }
+secp256k1 = { version = "0.26", optional = true }
 
 # - ZIP 339
 bip0039 = { version = "0.10", features = ["std", "all-languages"] }