diff --git a/flipt-engine-ffi/Cargo.toml b/flipt-engine-ffi/Cargo.toml
index d19bcd5c..4289a8e8 100644
--- a/flipt-engine-ffi/Cargo.toml
+++ b/flipt-engine-ffi/Cargo.toml
@@ -18,7 +18,7 @@ tokio-util = { version = "0.7", features = ["io", "codec"] }
 futures-util = "0.3.30"
 native-tls = { version = "0.2", features = ["vendored"] }
 futures = "0.3"
-thiserror = "1.0.63"
+thiserror = "2.0.3"
 reqwest-retry = "0.6.1"
 reqwest-middleware = "0.3.3"