diff --git a/Cargo.lock b/Cargo.lock
index 2bce2dd9..5bb18250 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2552,7 +2552,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d162beedaa69905488a8da94f5ac3edb4dd4788b732fadb7bd120b2625c1976"
 dependencies = [
  "data-encoding",
- "syn 1.0.109",
+ "syn 2.0.106",
 ]
 
 [[package]]
@@ -4050,9 +4050,9 @@ 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 = "hex_fmt"
@@ -6690,7 +6690,7 @@ version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77e878c846a8abae00dd069496dbe8751b16ac1c3d6bd2a7283a938e8228f90d"
 dependencies = [
- "proc-macro-crate 1.3.1",
+ "proc-macro-crate 3.2.0",
  "proc-macro2",
  "quote",
  "syn 2.0.106",
diff --git a/crypto/embedwards25519/Cargo.toml b/crypto/embedwards25519/Cargo.toml
index 84bcbe0e..6d2efed8 100644
--- a/crypto/embedwards25519/Cargo.toml
+++ b/crypto/embedwards25519/Cargo.toml
@@ -14,7 +14,7 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
-hex-literal = { version = "0.4", default-features = false }
+hex-literal = { version = "1", default-features = false }
 
 std-shims = { version = "0.1", path = "../../common/std-shims", default-features = false, optional = true }
 
diff --git a/crypto/secq256k1/Cargo.toml b/crypto/secq256k1/Cargo.toml
index 777a6ec1..e0c4f3f4 100644
--- a/crypto/secq256k1/Cargo.toml
+++ b/crypto/secq256k1/Cargo.toml
@@ -14,7 +14,7 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
-hex-literal = { version = "0.4", default-features = false }
+hex-literal = { version = "1", default-features = false }
 
 std-shims = { version = "0.1", path = "../../common/std-shims", default-features = false, optional = true }