diff --git a/Cargo.lock b/Cargo.lock
index 65a1340..1dc1e2b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -217,9 +217,9 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[package]]
 name = "hex-literal"
-version = "0.4.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fe2267d4ed49bc07b63801559be28c718ea06c4738b7a03c94df7386d2cde46"
+checksum = "e712f64ec3850b98572bffac52e2c6f282b29fe6c5fa6d42334b30be438d95c1"
 
 [[package]]
 name = "hkdf"
diff --git a/srp/Cargo.toml b/srp/Cargo.toml
index ff9c35d..7d54264 100644
--- a/srp/Cargo.toml
+++ b/srp/Cargo.toml
@@ -20,7 +20,7 @@ lazy_static = "1.2"
 subtle = "2.4"
 
 [dev-dependencies]
-hex-literal = "0.4"
+hex-literal = "1"
 num-traits = "0.2"
 rand = "0.8"
 sha1 = "0.10"