diff --git a/Cargo.toml b/Cargo.toml
index 309da9e..ddda76f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,8 +11,9 @@ repository = "https://github.com/RustAudio/coreaudio-sys.git"
 build = "build.rs"
 
 [build-dependencies.bindgen]
-version = "0.51"
+version = "0.53"
 default-features = false
+features = ["runtime"]
 
 [features]
 default = ["audio_toolbox", "audio_unit", "core_audio", "open_al", "core_midi"]
diff --git a/build.rs b/build.rs
index 2b511e0..fc328f1 100644
--- a/build.rs
+++ b/build.rs
@@ -79,6 +79,8 @@ fn build(sdk_path: Option<&str>, target: &str) {
     // Begin building the bindgen params.
     let mut builder = bindgen::Builder::default();
 
+    builder = builder.size_t_is_usize(true);
+
     builder = builder.clang_args(&[&format!("--target={}", target)]);
 
     if let Some(sdk_path) = sdk_path {