diff --git a/Cargo.toml b/Cargo.toml
index 4e825f5..9c149f2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,6 @@ edition = "2018"
 license = "MIT OR Apache-2.0"
 
 [dependencies]
-log = "0.4.11"
 keyboard-types = { version = "0.5.0", default-features = false }
 raw-window-handle = "0.3.3"
 rtrb = "0.1.1"
@@ -24,7 +23,6 @@ static_assertions = "1.1.0"
 xcb = { version = "0.9", features = ["thread", "xlib_xcb", "dri2"] }
 x11 = { version = "2.18", features = ["xlib", "xcursor"] }
 xcb-util = { version = "0.3", features = ["icccm"] }
-libc = "0.2"
 nix = "0.18"
 
 [target.'cfg(target_os="windows")'.dependencies]
diff --git a/src/x11/xcb_connection.rs b/src/x11/xcb_connection.rs
index db2113a..0be7aa1 100644
--- a/src/x11/xcb_connection.rs
+++ b/src/x11/xcb_connection.rs
@@ -82,7 +82,7 @@ impl XcbConnection {
                         addr: std::ptr::null_mut(),
                     };
 
-                    let mut value_type: *mut libc::c_char = std::ptr::null_mut();
+                    let mut value_type: *mut std::os::raw::c_char = std::ptr::null_mut();
                     let name_c_str = CString::new("Xft.dpi").unwrap();
                     let c_str = CString::new("Xft.Dpi").unwrap();