diff --git a/Cargo.lock b/Cargo.lock
index 3a251adb8b..cecea2cd4a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3530,9 +3530,9 @@ dependencies = [
 
 [[package]]
 name = "serde_yaml"
-version = "0.9.17"
+version = "0.9.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8fb06d4b6cdaef0e0c51fa881acb721bed3c924cfaa71d9c94a3b771dfdf6567"
+checksum = "f82e6c8c047aa50a7328632d067bcae6ef38772a79e28daf32f735e0e4f3dd10"
 dependencies = [
  "indexmap",
  "itoa",
@@ -4273,9 +4273,9 @@ checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c"
 
 [[package]]
 name = "unsafe-libyaml"
-version = "0.2.5"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc7ed8ba44ca06be78ea1ad2c3682a43349126c8818054231ee6f4748012aed2"
+checksum = "ad2024452afd3874bf539695e04af6732ba06517424dbf958fdb16a01f3bef6c"
 
 [[package]]
 name = "url"
diff --git a/boa_tester/Cargo.toml b/boa_tester/Cargo.toml
index 8636c32ee3..7a28663d78 100644
--- a/boa_tester/Cargo.toml
+++ b/boa_tester/Cargo.toml
@@ -16,7 +16,7 @@ boa_engine.workspace = true
 boa_gc.workspace = true
 clap = { version = "4.1.8", features = ["derive"] }
 serde = { version = "1.0.152", features = ["derive"] }
-serde_yaml = "0.9.17"
+serde_yaml = "0.9.19"
 serde_json = "1.0.93"
 bitflags = "1.3.2"
 regex = "1.7.1"