diff --git a/Cargo.toml b/Cargo.toml
index 506fa46..9eee456 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,7 +33,7 @@ blake2-rfc = { version = "0.2.18", optional = true }
 serde = { version = "1.0.138", features = ["derive"], optional = true }
 serde_json = { version = "1.0.82", optional = true }
 ciborium = { version = "0.2.0", optional = true }
-serde_yaml = { version = "0.8.24", optional = true }
+serde_yaml = { version = "0.9.19", optional = true }
 serde-pickle = { version = "1.1.1", optional = true }
 ron = { version = "0.7.1", optional = true }
 groestl = { version = "0.10.1", optional = true }