diff --git a/Cargo.lock b/Cargo.lock
index ea3e512..8743656 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -49,12 +49,6 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
-[[package]]
-name = "base16ct"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
-
 [[package]]
 name = "base16ct"
 version = "0.3.0"
@@ -452,7 +446,7 @@ name = "elliptic-curve"
 version = "0.14.0-rc.12"
 source = "git+https://github.com/RustCrypto/traits.git#501b8854593a440a08fcb299a1ae421b16c76169"
 dependencies = [
- "base16ct 0.3.0",
+ "base16ct",
  "crypto-bigint",
  "digest",
  "ff",
@@ -973,7 +967,7 @@ name = "p521"
 version = "0.14.0-pre.9"
 source = "git+https://github.com/RustCrypto/elliptic-curves.git#4cd8bde360c6b1c75cba4ec11c3be1772ad96b16"
 dependencies = [
- "base16ct 0.3.0",
+ "base16ct",
  "elliptic-curve",
  "primefield",
  "primeorder",
@@ -1305,7 +1299,7 @@ version = "0.8.0-rc.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f5e67a3c9fb9a8f065af9fa30d65812fcc16a66cbf911eff1f6946957ce48f16"
 dependencies = [
- "base16ct 0.3.0",
+ "base16ct",
  "der",
  "hybrid-array",
  "subtle",
@@ -1393,11 +1387,11 @@ dependencies = [
 
 [[package]]
 name = "serdect"
-version = "0.3.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f42f67da2385b51a5f9652db9c93d78aeaf7610bf5ec366080b6de810604af53"
+checksum = "d3ef0e35b322ddfaecbc60f34ab448e157e48531288ee49fafbb053696b8ffe2"
 dependencies = [
- "base16ct 0.2.0",
+ "base16ct",
  "serde",
 ]
 
diff --git a/frodo-kem/Cargo.toml b/frodo-kem/Cargo.toml
index 4c1751c..6d495ea 100644
--- a/frodo-kem/Cargo.toml
+++ b/frodo-kem/Cargo.toml
@@ -60,7 +60,7 @@ hex = { version = "0.4", optional = true }
 openssl-sys = { version = "0.9.104", optional = true }
 rand_core = { version = "0.9", features = [] }
 serde = { version = "1.0", features = ["derive"], optional = true }
-serdect = "0.3"
+serdect = "0.4"
 subtle = "2.6"
 thiserror = "2.0"