diff --git a/tarpc/Cargo.toml b/tarpc/Cargo.toml
index 53854600..38fc9dc7 100644
--- a/tarpc/Cargo.toml
+++ b/tarpc/Cargo.toml
@@ -50,7 +50,7 @@ rand = "0.8"
 serde = { optional = true, version = "1.0", features = ["derive"] }
 static_assertions = "1.1.0"
 tarpc-plugins = { path = "../plugins", version = "0.14" }
-thiserror = "1.0"
+thiserror = "2.0"
 tokio = { version = "1", features = ["time"] }
 tokio-util = { version = "0.7.3", features = ["time"] }
 tokio-serde = { optional = true, version = "0.9" }