diff --git a/crates/signia-plugins/Cargo.toml b/crates/signia-plugins/Cargo.toml
index a6c1082..68c859c 100644
--- a/crates/signia-plugins/Cargo.toml
+++ b/crates/signia-plugins/Cargo.toml
@@ -22,12 +22,12 @@ signia-core = { path = "../signia-core", version = "0.1.0", default-features = f
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 
-thiserror = "1.0"
+thiserror = "2.0"
 anyhow = "1.0"
 
 # Optional WASM sandbox support
-wasmtime = { version = "18.0", optional = true }
-wasmtime-wasi = { version = "18.0", optional = true }
+wasmtime = { version = "41.0", optional = true }
+wasmtime-wasi = { version = "41.0", optional = true }
 
 [dev-dependencies]
 tempfile = "3.10"