diff --git a/Cargo.lock b/Cargo.lock
index 972f7b8dc5..3a39bfb011 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1450,9 +1450,9 @@ dependencies = [
 
 [[package]]
 name = "serde_yaml"
-version = "0.9.2"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "826f989c0f374733af6c286f4822f293bc738def07e2782dc1cbb899960a504a"
+checksum = "79b7c9017c64a49806c6e8df8ef99b92446d09c92457f85f91835b01a8064ae0"
 dependencies = [
  "indexmap",
  "itoa 1.0.2",
@@ -1706,9 +1706,9 @@ checksum = "957e51f3646910546462e67d5f7599b9e4fb8acdd304b087a6494730f9eebf04"
 
 [[package]]
 name = "unsafe-libyaml"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dc1c637311091be28e5d462c07db78081e5828da80ba22605c81c4ad6f7f813"
+checksum = "931179334a56395bcf64ba5e0ff56781381c1a5832178280c7d7f91d1679aeb0"
 
 [[package]]
 name = "utf8parse"
diff --git a/boa_tester/Cargo.toml b/boa_tester/Cargo.toml
index bb10229194..68d10d329b 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 = "1.0.141", features = ["derive"] }
-serde_yaml = "0.9.2"
+serde_yaml = "0.9.4"
 serde_json = "1.0.82"
 bitflags = "1.3.2"
 regex = "1.6.0"