diff --git a/Cargo.toml b/Cargo.toml
index 33e2897..8f69b16 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ repository = "https://github.com/cv/bash-ast"
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-thiserror = "1.0"
+thiserror = "2.0"
 schemars = "1.2"
 
 [build-dependencies]