diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 7d77370..e5b8f6e 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 # Before upgrading check that everything is available on all tier1 targets here:
 # https://rust-lang.github.io/rustup-components-history
 [toolchain]
-channel = "nightly-2023-10-02"
+channel = "nightly-2023-10-21"
 components = ["clippy"]
diff --git a/src/lib.rs b/src/lib.rs
index 6dd9c71..4571052 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,5 @@
 #![cfg_attr(not(test), no_std)]
-#![feature(async_fn_in_trait)]
-#![allow(incomplete_features)]
+#![allow(async_fn_in_trait)]
 #![doc = include_str!("../README.md")]
 use core::{num::ParseIntError, str::Utf8Error};