2 files changed, 12 insertions, 15 deletions

diff --git a/examples/std/Cargo.toml b/examples/std/Cargo.toml
index 34b8ebb67..3ba495e59 100644
--- a/examples/std/Cargo.toml
+++ b/examples/std/Cargo.toml
@@ -9,12 +9,12 @@ embassy = { version = "0.1.0", path = "../../embassy", features = ["log", "std",
 embassy-net = { version = "0.1.0", path = "../../embassy-net", features=["std", "log", "medium-ethernet", "tcp", "dhcpv4"] }
 smoltcp = { git = "https://github.com/smoltcp-rs/smoltcp", rev="e4241510337e095b9d21136c5f58b2eaa1b78479", default-features = false }
 
-async-io = "1.3.1"
-env_logger = "0.8.2"
-futures = { version = "0.3.8", default-features = false, features = ["async-await"] }
-log = "0.4.11"
-nix = "0.21.0"
-libc = "0.2.81"
-clap = { version = "3.0.0-beta.2", features = ["derive"] }
-rand_core   = { version = "0.6.0", features = ["std"] }
-heapless            = { version = "0.7.1", default-features = false }
+async-io = "1.6.0"
+env_logger = "0.9.0"
+futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
+log = "0.4.14"
+nix = "0.22.1"
+libc = "0.2.101"
+clap = { version = "3.0.0-beta.4", features = ["derive"] }
+rand_core   = { version = "0.6.3", features = ["std"] }
+heapless            = { version = "0.7.5", default-features = false }
diff --git a/examples/std/src/serial_port.rs b/examples/std/src/serial_port.rs
index 7ac1b1edb..aadaeb81d 100644
--- a/examples/std/src/serial_port.rs
+++ b/examples/std/src/serial_port.rs
@@ -1,6 +1,6 @@
+use nix::errno::Errno;
 use nix::fcntl::OFlag;
 use nix::sys::termios;
-use nix::Error;
 use std::io;
 use std::os::unix::io::{AsRawFd, RawFd};
 
@@ -63,9 +63,6 @@ impl io::Write for SerialPort {
     }
 }
 
-fn to_io_error(e: Error) -> io::Error {
-    match e {
-        Error::Sys(errno) => errno.into(),
-        e => io::Error::new(io::ErrorKind::InvalidInput, e),
-    }
+fn to_io_error(e: Errno) -> io::Error {
+    e.into()
 }