diff --git a/tiktoken-rs/Cargo.toml b/tiktoken-rs/Cargo.toml
index 67e83ad..9daa11f 100644
--- a/tiktoken-rs/Cargo.toml
+++ b/tiktoken-rs/Cargo.toml
@@ -27,7 +27,7 @@ fancy-regex = "0.12.0"
 lazy_static = "1.4.0"
 parking_lot = "0.12.1"
 pyo3 = { version = "0.19.2", optional = true }
-rustc-hash = "1.1.0"
+rustc-hash = "2.0.0"
 
 [features]
 python = ["dep:pyo3"] # build python bindings