diff --git a/Cargo.toml b/Cargo.toml
index b789e71..fa26c3b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ num-traits = "0.2"
 num-bigint = "0.4"
 num-rational = "0.4"
 nalgebra = "0.32"
-thiserror = "1.0"
+thiserror = "2.0"
 indexmap = "2.0"
 ndarray = "0.15"
 rayon = { version = "1.7", optional = true }