diff --git a/Cargo.toml b/Cargo.toml
index 47594f435..308b86984 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -124,7 +124,7 @@ liquid-lib = { version = "^0.26.11", path = "crates/lib", optional = true }
 serde = { version = "1.0.157", features = ["derive"] }
 
 [dev-dependencies]
-serde_yaml = "0.8.26"
+serde_yaml = "0.9.0"
 tera = { version = "1.19", default-features = false }
 handlebars = "6.0"
 serde_derive = "1.0"
diff --git a/crates/bin/Cargo.toml b/crates/bin/Cargo.toml
index 4f6377ac0..ea92ab529 100644
--- a/crates/bin/Cargo.toml
+++ b/crates/bin/Cargo.toml
@@ -18,6 +18,6 @@ rustdoc-args = ["--cfg", "docsrs"]
 liquid = { version = "^0.26.11", path = "../../" }
 serde = { version = "1.0.157", features = ["derive"] }
 clap = { version = "4.3", features = ["derive"] }
-serde_yaml = "0.8.26"
+serde_yaml = "0.9.0"
 serde_json = "1.0"
 derive_more = { version = "1.0.0", features = ["display", "from", "constructor"] }
diff --git a/crates/core/Cargo.toml b/crates/core/Cargo.toml
index 348759008..3c2d33b1d 100644
--- a/crates/core/Cargo.toml
+++ b/crates/core/Cargo.toml
@@ -28,7 +28,7 @@ kstring = { version = "2.0", features = ["serde"] }
 liquid-derive = { version = "^0.26.10", path = "../derive", optional = true }
 
 [dev-dependencies]
-serde_yaml = "0.8.26"
+serde_yaml = "0.9.0"
 snapbox = "0.6.5"
 
 [features]