diff --git a/Cargo.toml b/Cargo.toml
index 45a96dc..36b3372 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ benchmark = ["criterion"]
 [dependencies]
 base64ct = { version = "1.6.0", default-features = false, features = ["std"] }
 getrandom = { version = "0.2.12", default-features = false }
-thiserror = { version = "1.0.57", default-features = false }
+thiserror = { version = "2.0.3", default-features = false }
 
 # chacha feature:
 # - XChaCha20Poly1305WithBlake3