diff --git a/Cargo.lock b/Cargo.lock
index d3a490b..d7138e4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -675,9 +675,9 @@ dependencies = [
 
 [[package]]
 name = "hex-literal"
-version = "0.4.1"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fe2267d4ed49bc07b63801559be28c718ea06c4738b7a03c94df7386d2cde46"
+checksum = "bcaaec4551594c969335c98c903c1397853d4198408ea609190f420500f6be71"
 
 [[package]]
 name = "hkdf"
diff --git a/dhkem/Cargo.toml b/dhkem/Cargo.toml
index ce8fe40..df15202 100644
--- a/dhkem/Cargo.toml
+++ b/dhkem/Cargo.toml
@@ -37,7 +37,7 @@ x25519 = ["dep:x25519", "x25519/reusable_secrets"]
 zeroize = ["dep:zeroize"]
 
 [dev-dependencies]
-hex-literal = "0.4.1"
+hex-literal = "1.0.0"
 hkdf = "0.12.4"
 rand = "0.8.5"
 sha2 = "0.10.8"
diff --git a/ml-kem/Cargo.toml b/ml-kem/Cargo.toml
index cff7ccc..184da6d 100644
--- a/ml-kem/Cargo.toml
+++ b/ml-kem/Cargo.toml
@@ -31,7 +31,7 @@ zeroize = { version = "1.8.1", optional = true, default-features = false }
 [dev-dependencies]
 criterion = "0.5.1"
 hex = { version = "0.4.3", features = ["serde"] }
-hex-literal = "0.4.1"
+hex-literal = "1.0.0"
 num-rational = { version = "0.4.2", default-features = false, features = ["num-bigint"] }
 rand = "0.8.5"
 crypto-common = { version = "0.1.6", features = ["rand_core"] }