diff --git a/Cargo.toml b/Cargo.toml
index 6bff35c..af850dc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ categories = ["science"]
 bitvec = "1"
 rand = "0.8"
 rand_distr = "0.4"
-thiserror = "1"
+thiserror = "2"
 
 [dev-dependencies]
 rand_xoshiro = "0.6"