diff --git a/Cargo.lock b/Cargo.lock
index cbfdcfd..36c67e8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -218,18 +218,18 @@ dependencies = [
 
 [[package]]
 name = "rb-sys"
-version = "0.9.127"
+version = "0.9.128"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7d7c9560fe42dcffa576941394075f18a17dce89fcf718a2fa90b7dc2134d12"
+checksum = "45ca28513560e56cfb79a62b1fce363c73af170a182024ce880c77ee9429920a"
 dependencies = [
  "rb-sys-build",
 ]
 
 [[package]]
 name = "rb-sys-build"
-version = "0.9.127"
+version = "0.9.128"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1688e8f32967ba48c89e4dfa283b57f901075f542fc7ee9c3d7c5f9091ca1d9"
+checksum = "ce04b2c55eff3a21aaa623fcc655d94373238e72cac6b3e1a3641ff31649f99a"
 dependencies = [
  "bindgen",
  "lazy_static",
diff --git a/ext/tiktoken_ruby/Cargo.toml b/ext/tiktoken_ruby/Cargo.toml
index 004fea7..a61f4af 100644
--- a/ext/tiktoken_ruby/Cargo.toml
+++ b/ext/tiktoken_ruby/Cargo.toml
@@ -11,5 +11,5 @@ crate-type = ["cdylib"]
 
 [dependencies]
 magnus = { version = "0.8.2" }
-rb-sys = { version = "0.9.127", features = ["stable-api-compiled-fallback"] }
+rb-sys = { version = "0.9.128", features = ["stable-api-compiled-fallback"] }
 tiktoken-rs = { version = "0.11.0" }