diff --git a/loom-cli/Cargo.toml b/loom-cli/Cargo.toml
index b65929a..700d5c9 100644
--- a/loom-cli/Cargo.toml
+++ b/loom-cli/Cargo.toml
@@ -20,7 +20,7 @@ clap = { workspace = true }
 anyhow = { workspace = true }
 
 # Attestation support (optional)
-wsc-attestation = { version = "0.9", optional = true }
+wsc-attestation = { version = "0.10", optional = true }
 serde_json = { version = "1.0", optional = true }
 
 # Behavioral differential gate (#238, optional — pulls wasmtime; off by default)