diff --git a/pallas-configs/Cargo.toml b/pallas-configs/Cargo.toml
index 271a5a1..e847af0 100644
--- a/pallas-configs/Cargo.toml
+++ b/pallas-configs/Cargo.toml
@@ -19,7 +19,7 @@ pallas-primitives = { version = "=0.32.1", path = "../pallas-primitives" }
 serde = { version = "1.0.136", optional = true, features = ["derive"] }
 serde_json = { version = "1.0.79", optional = true }
 base64 = "0.22.0"
-serde_with = "3.7.0"
+serde_with = "3.21.0"
 num-rational = "0.4.1"
 
 [features]