diff --git a/Cargo.lock b/Cargo.lock
index e5a02957..2c944364 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1094,9 +1094,9 @@ checksum = "0c520e05135d6e763148b6426a837e239041653ba7becd2e538c076c738025fc"
 
 [[package]]
 name = "pbkdf2"
-version = "0.10.1"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "271779f35b581956db91a3e55737327a03aa051e90b1c47aeb189508533adfd7"
+checksum = "83a0692ec44e4cf1ef28ca317f14f8f07da2d95ec3fa01f86e4467b725e60917"
 dependencies = [
  "digest 0.10.3",
 ]
diff --git a/bip32/Cargo.toml b/bip32/Cargo.toml
index 2e9a83ad..28d82188 100644
--- a/bip32/Cargo.toml
+++ b/bip32/Cargo.toml
@@ -28,7 +28,7 @@ zeroize = { version = "1", default-features = false }
 # optional dependencies
 k256 = { version = "0.11", optional = true, default-features = false, features = ["ecdsa", "sha256", "keccak256"] }
 once_cell = { version = "1", optional = true }
-pbkdf2 = { version = "0.10", optional = true, default-features = false }
+pbkdf2 = { version = "0.11", optional = true, default-features = false }
 secp256k1-ffi = { package = "secp256k1", version = "0.21", optional = true }
 
 [dev-dependencies]
diff --git a/hkd32/Cargo.toml b/hkd32/Cargo.toml
index 374d26a8..b3e4ee41 100644
--- a/hkd32/Cargo.toml
+++ b/hkd32/Cargo.toml
@@ -26,7 +26,7 @@ zeroize = { version = "1", default-features = false, features = ["zeroize_derive
 
 # optional dependencies
 once_cell = { version = "1", optional = true }
-pbkdf2 = { version = "0.10", optional = true, default-features = false }
+pbkdf2 = { version = "0.11", optional = true, default-features = false }
 subtle-encoding = { version = "0.5", optional = true, default-features = false, path = "../subtle-encoding" }
 
 [dev-dependencies]