diff --git a/Cargo.toml b/Cargo.toml
index 698efaf..c46b9c8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ wasm-bindgen = "0.2.84"
 # all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
 # code size when deploying.
 console_error_panic_hook = { version = "0.1.7", optional = true }
-tsify = { version = "0.4.5", features = ["js"] }
+tsify = { version = "0.5.5", features = ["js"] }
 kiddo = { version = "5.0.3", features = ["serde"] }
 serde = "1.0.217"
 serde-wasm-bindgen = "0.6.5"