diff --git a/CHANGELOG.md b/CHANGELOG.md
index 08e781f..75cdab2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.2.3 (unreleased)
+
+- Removed dependency
+
 ## 0.2.2 (2022-09-23)
 
 - Added `p` and `q`
diff --git a/Cargo.toml b/Cargo.toml
index 966ed9f..247e276 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,6 @@ links = "mf"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-libc = "0.2"
 
 [build-dependencies]
 cc = "1.0"
diff --git a/src/bindings.rs b/src/bindings.rs
index 33b26ee..bd4c1f8 100644
--- a/src/bindings.rs
+++ b/src/bindings.rs
@@ -1,6 +1,4 @@
-extern crate libc;
-
-use std::os::raw::{c_char, c_double, c_float, c_int, c_longlong};
+use std::ffi::{c_char, c_double, c_float, c_int, c_longlong};
 
 #[repr(C)]
 pub struct MfNode {