diff --git a/Cargo.toml b/Cargo.toml
index fac8530..321cd5b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ serde = { version = "1.0.210", features = ["derive"] }
 fmodel-rust = "0.7.0"
 serde_json = "1.0.131"
 uuid = { version = "1.11.0", features = ["serde", "v4"] }
-thiserror = "1.0.64"
+thiserror = "2.0.0"
 
 [dev-dependencies]
 pgrx-tests = "0.12.6"