diff --git a/packer/Cargo.lock b/packer/Cargo.lock
index 86795aed7..3d8311a7e 100644
--- a/packer/Cargo.lock
+++ b/packer/Cargo.lock
@@ -661,9 +661,9 @@ dependencies = [
 
 [[package]]
 name = "serde_yaml"
-version = "0.9.19"
+version = "0.9.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f82e6c8c047aa50a7328632d067bcae6ef38772a79e28daf32f735e0e4f3dd10"
+checksum = "d9d684e3ec7de3bf5466b32bd75303ac16f0736426e5a4e0d6e489559ce1249c"
 dependencies = [
  "indexmap",
  "itoa",
diff --git a/packer/Cargo.toml b/packer/Cargo.toml
index 239318171..94f2267e0 100644
--- a/packer/Cargo.toml
+++ b/packer/Cargo.toml
@@ -14,7 +14,7 @@ clap = { version = "^3", features = ["derive", "cargo"] }
 shellexpand = "^2"
 tar = "0.4.38"
 serde = { version = "^1", features = ["derive"] }
-serde_yaml = "0.9.19"
+serde_yaml = "0.9.21"
 anyhow = "^1"
 sha2 = "0.10.6"
 data-encoding = "^2"