diff --git a/Cargo.lock b/Cargo.lock
index 1280eb5..40a8fc1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5705,7 +5705,7 @@ dependencies = [
  "chrono",
  "futures-util",
  "hex",
- "hmac 0.12.1",
+ "hmac 0.13.0",
  "http-body-util",
  "reqwest 0.13.4",
  "serde",
diff --git a/backend/shuttle-auctioning/Cargo.toml b/backend/shuttle-auctioning/Cargo.toml
index 9e0188c..5223308 100644
--- a/backend/shuttle-auctioning/Cargo.toml
+++ b/backend/shuttle-auctioning/Cargo.toml
@@ -29,7 +29,7 @@ chrono = { version = "0.4", features = ["serde"] }
 reqwest = { version = "0.13", features = ["json"] }
 bs58 = "0.5"
 hex = "0.4"
-hmac = "0.12"
+hmac = "0.13"
 sha2 = "0.11"
 solana-sdk = "2"
 bincode = "3.0"