diff --git a/Cargo.lock b/Cargo.lock
index 5c02323..6c986e4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -280,9 +280,9 @@ dependencies = [
 
 [[package]]
 name = "ctap_hmac"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c83f25a6970eb60fd32754c99ffb0b89ff464d70bf8dea147805497c7fb7eb5e"
+checksum = "e9c22d4c95aeeb4e2d41e823912d5460cfa1ebf672363eb97b32fa7c91cab89a"
 dependencies = [
  "byteorder",
  "cbor-codec",
diff --git a/Cargo.toml b/Cargo.toml
index 9546d26..bfca43e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ categories = ["command-line-utilities"]
 license = "MPL-2.0"
 
 [dependencies]
-ctap_hmac = { version="0.4.4", features = ["request_multiple"] }
+ctap_hmac = { version="0.4.5", features = ["request_multiple"] }
 hex = "0.3.2"
 ring = "0.13.5"
 failure = "0.1.5"
@@ -26,7 +26,7 @@ serde_derive = "1.0.116"
 serde = "1.0.116"
 
 [build-dependencies]
-ctap_hmac = { version="0.4.4", features = ["request_multiple"] }
+ctap_hmac = { version="0.4.5", features = ["request_multiple"] }
 hex = "0.3.2"
 ring = "0.13.5"
 failure = "0.1.5"