diff --git a/Cargo.toml b/Cargo.toml
index d8ac248189d..2238deac71c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,4 +17,3 @@ members = [
 
 [workspace.metadata.spellcheck]
 config = "spellcheck.toml"
-
diff --git a/tokio/Cargo.toml b/tokio/Cargo.toml
index 020cc1e4ac2..e46e274c47a 100644
--- a/tokio/Cargo.toml
+++ b/tokio/Cargo.toml
@@ -118,7 +118,7 @@ signal-hook-registry = { version = "1.1.1", optional = true }
 
 [target.'cfg(unix)'.dev-dependencies]
 libc = { version = "0.2.149" }
-nix = { version = "0.27.1", default-features = false, features = ["fs", "socket"] }
+nix = { version = "0.29.0", default-features = false, features = ["aio", "fs", "socket"] }
 
 [target.'cfg(windows)'.dependencies.windows-sys]
 version = "0.48"
@@ -149,7 +149,7 @@ rand = "0.8.0"
 wasm-bindgen-test = "0.3.0"
 
 [target.'cfg(target_os = "freebsd")'.dev-dependencies]
-mio-aio = { version = "0.8.0", features = ["tokio"] }
+mio-aio = { version = "0.9.0", features = ["tokio"] }
 
 [target.'cfg(loom)'.dev-dependencies]
 loom = { version = "0.7", features = ["futures", "checkpoint"] }
diff --git a/tokio/tests/io_async_fd.rs b/tokio/tests/io_async_fd.rs
index ea798b3067a..4e6f630eb93 100644
--- a/tokio/tests/io_async_fd.rs
+++ b/tokio/tests/io_async_fd.rs
@@ -1,7 +1,7 @@
 #![warn(rust_2018_idioms)]
 #![cfg(all(unix, feature = "full"))]
 
-use std::os::unix::io::{AsRawFd, IntoRawFd, RawFd};
+use std::os::unix::io::{AsRawFd, RawFd};
 use std::sync::{
     atomic::{AtomicBool, Ordering},
     Arc,
@@ -13,7 +13,7 @@ use std::{
     task::{Context, Waker},
 };
 
-use nix::unistd::{close, read, write};
+use nix::unistd::{read, write};
 
 use futures::poll;
 
@@ -58,18 +58,18 @@ impl TestWaker {
 
 #[derive(Debug)]
 struct FileDescriptor {
-    fd: RawFd,
+    fd: std::os::fd::OwnedFd,
 }
 
 impl AsRawFd for FileDescriptor {
     fn as_raw_fd(&self) -> RawFd {
-        self.fd
+        self.fd.as_raw_fd()
     }
 }
 
 impl Read for &FileDescriptor {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        read(self.fd, buf).map_err(io::Error::from)
+        read(self.fd.as_raw_fd(), buf).map_err(io::Error::from)
     }
 }
 
@@ -81,7 +81,7 @@ impl Read for FileDescriptor {
 
 impl Write for &FileDescriptor {
     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        write(self.fd, buf).map_err(io::Error::from)
+        write(&self.fd, buf).map_err(io::Error::from)
     }
 
     fn flush(&mut self) -> io::Result<()> {
@@ -99,12 +99,6 @@ impl Write for FileDescriptor {
     }
 }
 
-impl Drop for FileDescriptor {
-    fn drop(&mut self) {
-        let _ = close(self.fd);
-    }
-}
-
 fn set_nonblocking(fd: RawFd) {
     use nix::fcntl::{OFlag, F_GETFL, F_SETFL};
 
@@ -133,17 +127,10 @@ fn socketpair() -> (FileDescriptor, FileDescriptor) {
         SockFlag::empty(),
     )
     .expect("socketpair");
-    let fds = (
-        FileDescriptor {
-            fd: fd_a.into_raw_fd(),
-        },
-        FileDescriptor {
-            fd: fd_b.into_raw_fd(),
-        },
-    );
+    let fds = (FileDescriptor { fd: fd_a }, FileDescriptor { fd: fd_b });
 
-    set_nonblocking(fds.0.fd);
-    set_nonblocking(fds.1.fd);
+    set_nonblocking(fds.0.fd.as_raw_fd());
+    set_nonblocking(fds.1.fd.as_raw_fd());
 
     fds
 }
diff --git a/tokio/tests/io_poll_aio.rs b/tokio/tests/io_poll_aio.rs
index e83859f5c98..242887eb60f 100644
--- a/tokio/tests/io_poll_aio.rs
+++ b/tokio/tests/io_poll_aio.rs
@@ -5,6 +5,7 @@ use mio_aio::{AioFsyncMode, SourceApi};
 use std::{
     future::Future,
     io, mem,
+    os::fd::AsFd,
     os::unix::io::{AsRawFd, RawFd},
     pin::{pin, Pin},
     task::{Context, Poll},
@@ -17,9 +18,9 @@ mod aio {
     use super::*;
 
     #[derive(Debug)]
-    struct TokioSource(mio_aio::Source<nix::sys::aio::AioFsync>);
+    struct TokioSource<'fd>(mio_aio::Source<nix::sys::aio::AioFsync<'fd>>);
 
-    impl AioSource for TokioSource {
+    impl<'fd> AioSource for TokioSource<'fd> {
         fn register(&mut self, kq: RawFd, token: usize) {
             self.0.register_raw(kq, token)
         }
@@ -29,9 +30,9 @@ mod aio {
     }
 
     /// A very crude implementation of an AIO-based future
-    struct FsyncFut(Aio<TokioSource>);
+    struct FsyncFut<'fd>(Aio<TokioSource<'fd>>);
 
-    impl FsyncFut {
+    impl<'fd> FsyncFut<'fd> {
         pub fn submit(self: Pin<&mut Self>) -> io::Result<()> {
             let p = unsafe { self.map_unchecked_mut(|s| &mut s.0 .0) };
             match p.submit() {
@@ -41,7 +42,7 @@ mod aio {
         }
     }
 
-    impl Future for FsyncFut {
+    impl<'fd> Future for FsyncFut<'fd> {
         type Output = io::Result<()>;
 
         fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
@@ -134,7 +135,7 @@ mod aio {
     #[tokio::test]
     async fn fsync() {
         let f = tempfile().unwrap();
-        let fd = f.as_raw_fd();
+        let fd = f.as_fd();
         let mode = AioFsyncMode::O_SYNC;
         let source = TokioSource(mio_aio::Fsync::fsync(fd, mode, 0));
         let poll_aio = Aio::new_for_aio(source).unwrap();
diff --git a/tokio/tests/net_unix_pipe.rs b/tokio/tests/net_unix_pipe.rs
index 6706880ed1b..37b8b41bd31 100644
--- a/tokio/tests/net_unix_pipe.rs
+++ b/tokio/tests/net_unix_pipe.rs
@@ -489,12 +489,10 @@ async fn anon_pipe_spawn_echo() -> std::io::Result<()> {
 #[cfg(target_os = "linux")]
 async fn anon_pipe_from_owned_fd() -> std::io::Result<()> {
     use nix::fcntl::OFlag;
-    use std::os::unix::io::{FromRawFd, OwnedFd};
 
     const DATA: &[u8] = b"this is some data to write to the pipe";
 
-    let fds = nix::unistd::pipe2(OFlag::O_CLOEXEC | OFlag::O_NONBLOCK)?;
-    let (rx_fd, tx_fd) = unsafe { (OwnedFd::from_raw_fd(fds.0), OwnedFd::from_raw_fd(fds.1)) };
+    let (rx_fd, tx_fd) = nix::unistd::pipe2(OFlag::O_CLOEXEC | OFlag::O_NONBLOCK)?;
 
     let mut rx = pipe::Receiver::from_owned_fd(rx_fd)?;
     let mut tx = pipe::Sender::from_owned_fd(tx_fd)?;