diff --git a/Cargo.toml b/Cargo.toml
index 02de15f..720d86d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ readme = "README.md"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serde = { version = "1.0.200", features = ["derive"] }
+serde = { version = "1.0.219", features = ["derive"] }
 anyhow = "1.0.97"
 elliptic-curve = { version = "0.13.8", features = ["pkcs8", "pem"] }
 p384 = { version = "0.13.1", features = ["ecdsa", "pkcs8", "pem"] }