diff --git a/CedarJavaFFI/Cargo.toml b/CedarJavaFFI/Cargo.toml
index ed21ccd..aad28a4 100644
--- a/CedarJavaFFI/Cargo.toml
+++ b/CedarJavaFFI/Cargo.toml
@@ -11,7 +11,7 @@ version = "4.0.0"
 [dependencies]
 serde = { version = "1.0", features = ["derive", "rc"] }
 serde_json = "1.0"
-thiserror = "1.0"
+thiserror = "2.0"
 itertools = "0.13"
 
 # JNI Support