diff --git a/Cargo.lock b/Cargo.lock
index b0ee96510..7b17cdb61 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1508,9 +1508,9 @@ dependencies = [
 
 [[package]]
 name = "serde_yaml"
-version = "0.9.4"
+version = "0.9.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79b7c9017c64a49806c6e8df8ef99b92446d09c92457f85f91835b01a8064ae0"
+checksum = "92b5b431e8907b50339b51223b97d102db8d987ced36f6e4d03621db9316c834"
 dependencies = [
  "indexmap",
  "itoa 1.0.2",
@@ -1764,9 +1764,9 @@ checksum = "957e51f3646910546462e67d5f7599b9e4fb8acdd304b087a6494730f9eebf04"
 
 [[package]]
 name = "unsafe-libyaml"
-version = "0.2.2"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "931179334a56395bcf64ba5e0ff56781381c1a5832178280c7d7f91d1679aeb0"
+checksum = "bc7ed8ba44ca06be78ea1ad2c3682a43349126c8818054231ee6f4748012aed2"
 
 [[package]]
 name = "utf8parse"
diff --git a/boa_tester/Cargo.toml b/boa_tester/Cargo.toml
index 552b6ba3c..4685d67df 100644
--- a/boa_tester/Cargo.toml
+++ b/boa_tester/Cargo.toml
@@ -17,7 +17,7 @@ boa_interner = { path = "../boa_interner", version = "0.15.0" }
 boa_gc = { path = "../boa_gc", version = "0.15.0" }
 structopt = "0.3.26"
 serde = { version = "1.0.143", features = ["derive"] }
-serde_yaml = "0.9.4"
+serde_yaml = "0.9.16"
 serde_json = "1.0.83"
 bitflags = "1.3.2"
 regex = "1.6.0"