diff --git a/Cargo.toml b/Cargo.toml
index 3102e14..8a0f9b0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ derive_more = { version = "1.0.0", features = ["deref", "as_ref"] }
 general-sam = { version = "1.0.0", features = ["trie"] }
 pyo3 = { version = "0.22.5", optional = true }
 smallvec = "1.13.2"
-thiserror = "1.0.64"
+thiserror = "2.0.7"
 
 [features]
 pyo3 = ["dep:pyo3"]