diff --git a/crates/rmcp-macros/Cargo.toml b/crates/rmcp-macros/Cargo.toml
index cd936fa..b651a35 100644
--- a/crates/rmcp-macros/Cargo.toml
+++ b/crates/rmcp-macros/Cargo.toml
@@ -19,7 +19,7 @@ syn = {version = "2", features = ["full"]}
 quote = "1"
 proc-macro2 = "1"
 serde_json = "1.0"
-darling = { version = "0.20" }
+darling = { version = "0.21" }
 
 [features]
 [dev-dependencies]