diff --git a/z3-sys/Cargo.toml b/z3-sys/Cargo.toml
index 64028302..36f62fe6 100644
--- a/z3-sys/Cargo.toml
+++ b/z3-sys/Cargo.toml
@@ -16,7 +16,7 @@ homepage = "https://github.com/prove-rs/z3.rs"
 repository = "https://github.com/prove-rs/z3.rs.git"
 
 [build-dependencies]
-bindgen = { version = "0.69", default-features = false, features = ["runtime"] }
+bindgen = { version = "0.70", default-features = false, features = ["runtime"] }
 cmake = { version = "0.1.49", optional = true }
 pkg-config = "0.3.27"
 vcpkg = { version = "0.2.15", optional = true }