diff --git a/Cargo.lock b/Cargo.lock
index 435405d..c009b50 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -466,9 +466,9 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[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 = "indexmap"
diff --git a/Cargo.toml b/Cargo.toml
index fda332c..7fcee36 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ ark-ff               ={ version="0.5", features=["std"] }
 ark-crypto-primitives={ version="0.5", features=["sponge"] }
 des                  ="0.8"
 chacha20             ="0.9"
-hex-literal          ="0.4"
+hex-literal          ="1.0"
 
 [[bin]]
 name="hmac_sha256_bin"