diff --git a/Cargo.toml b/Cargo.toml
index 4390efb..08ee95d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -70,7 +70,7 @@ features = [
 ]
 
 [target.'cfg(target_os = "redox")'.dependencies]
-libredox = "0.1.18"
+redox_syscall = "0.5"
 
 [build-dependencies]
 cfg_aliases = "0.2.0"
diff --git a/src/orbital.rs b/src/orbital.rs
index fae3cd8..50428ab 100644
--- a/src/orbital.rs
+++ b/src/orbital.rs
@@ -11,24 +11,22 @@ struct OrbitalMap {
 }
 
 impl OrbitalMap {
-    unsafe fn new(fd: usize, size_unaligned: usize) -> std::io::Result<Self> {
-        // from redox_syscall
-        const PAGE_SIZE: usize = 4096;
+    unsafe fn new(fd: usize, size_unaligned: usize) -> syscall::Result<Self> {
         // Page align size
-        let pages = (size_unaligned + PAGE_SIZE - 1) / PAGE_SIZE;
-        let size = pages * PAGE_SIZE;
+        let pages = (size_unaligned + syscall::PAGE_SIZE - 1) / syscall::PAGE_SIZE;
+        let size = pages * syscall::PAGE_SIZE;
 
         // Map window buffer
         let address = unsafe {
-            libredox::call::mmap(libredox::call::MmapArgs {
-                addr: core::ptr::null_mut(),
-                length: size,
-                prot: libredox::flag::PROT_READ | libredox::flag::PROT_WRITE,
-                flags: libredox::flag::MAP_SHARED,
+            syscall::fmap(
                 fd,
-                offset: 0,
-            })?
-            .addr()
+                &syscall::Map {
+                    offset: 0,
+                    size,
+                    flags: syscall::PROT_READ | syscall::PROT_WRITE | syscall::MAP_SHARED,
+                    address: 0,
+                },
+            )?
         };
 
         Ok(Self {
@@ -51,8 +49,7 @@ impl Drop for OrbitalMap {
     fn drop(&mut self) {
         unsafe {
             // Unmap window buffer on drop
-            libredox::call::munmap(self.address as _, self.size)
-                .expect("failed to unmap orbital window");
+            syscall::funmap(self.address, self.size).expect("failed to unmap orbital window");
         }
     }
 }
@@ -111,7 +108,7 @@ impl<D: HasDisplayHandle, W: HasWindowHandle> OrbitalImpl<D, W> {
         let mut window_height = 0;
 
         let mut buf: [u8; 4096] = [0; 4096];
-        let count = libredox::call::fpath(self.window_fd(), &mut buf).unwrap();
+        let count = syscall::fpath(self.window_fd(), &mut buf).unwrap();
         let path = str::from_utf8(&buf[..count]).unwrap();
         // orbital:/x/y/w/h/t
         let mut parts = path.split('/').skip(3);
@@ -226,14 +223,14 @@ impl<'a, D: HasDisplayHandle, W: HasWindowHandle> BufferImpl<'a, D, W> {
 
         // Tell orbital to show the latest window data
         if damage.is_empty() {
-            libredox::call::fsync(self.imp.window_fd()).expect("failed to sync orbital window");
+            syscall::fsync(self.imp.window_fd()).expect("failed to sync orbital window");
         } else {
             use std::fmt::Write;
             let mut damage_buf = "Y".to_string();
             for m in damage {
                 let _ = write!(damage_buf, ",{},{},{},{}", m.x, m.y, m.width, m.height);
             }
-            libredox::call::write(self.imp.window_fd(), damage_buf.as_bytes())
+            syscall::write(self.imp.window_fd(), damage_buf.as_bytes())
                 .expect("failed to sync orbital window");
         }