diff --git a/Cargo.toml b/Cargo.toml
index 51207bf..033ce6e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ ordered-float = "4.4.0"
 serde = { version = "1.0.210", optional = true, features = ["derive"] }
 serde_with = { version = "3.11.0", optional = true, features = ["hex"] }
 indexmap = "2.6.0"
-thiserror = "1.0.64"
+thiserror = "2.0.9"
 num_enum = "0.7.3"
 flate2 = "1.0.34"
 cfg_eval = "0.1.2"