diff --git a/README.md b/README.md
index 145ae4c80..bb24029ea 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ Make sure you activated the full features of the tokio crate on Cargo.toml:
 
 ```toml
 [dependencies]
-tokio = { version = "1.28.0", features = ["full"] }
+tokio = { version = "1.28.1", features = ["full"] }
 ```
 Then, on your main.rs:
 
diff --git a/tokio/CHANGELOG.md b/tokio/CHANGELOG.md
index e51ad14d1..659e4200a 100644
--- a/tokio/CHANGELOG.md
+++ b/tokio/CHANGELOG.md
@@ -1,3 +1,10 @@
+# 1.28.1 (May 10th, 2023)
+
+This release fixes a mistake in the build script that makes `AsFd`
+implementations unavailable on Rust 1.63. ([#5677])
+
+[#5677]: https://github.com/tokio-rs/tokio/pull/5677
+
 # 1.28.0 (April 25th, 2023)
 
 ### Added
diff --git a/tokio/Cargo.toml b/tokio/Cargo.toml
index 20b320521..7dffee1ab 100644
--- a/tokio/Cargo.toml
+++ b/tokio/Cargo.toml
@@ -6,7 +6,7 @@ name = "tokio"
 #   - README.md
 # - Update CHANGELOG.md.
 # - Create "v1.x.y" git tag.
-version = "1.28.0"
+version = "1.28.1"
 edition = "2021"
 rust-version = "1.56"
 authors = ["Tokio Contributors <team@tokio.rs>"]
diff --git a/tokio/README.md b/tokio/README.md
index 145ae4c80..bb24029ea 100644
--- a/tokio/README.md
+++ b/tokio/README.md
@@ -56,7 +56,7 @@ Make sure you activated the full features of the tokio crate on Cargo.toml:
 
 ```toml
 [dependencies]
-tokio = { version = "1.28.0", features = ["full"] }
+tokio = { version = "1.28.1", features = ["full"] }
 ```
 Then, on your main.rs:
 
diff --git a/tokio/build.rs b/tokio/build.rs
index 2d2ec5641..b8234dde9 100644
--- a/tokio/build.rs
+++ b/tokio/build.rs
@@ -19,13 +19,14 @@ const CONST_MUTEX_NEW_PROBE: &str = r#"
 
 const AS_FD_PROBE: &str = r#"
 {
-    #![allow(unused_imports)]
-
+    #[allow(unused_imports)]
     #[cfg(unix)]
     use std::os::unix::prelude::AsFd as _;
+    #[allow(unused_imports)]
     #[cfg(windows)]
     use std::os::windows::prelude::AsSocket as _;
-    #[cfg(target = "wasm32-wasi")]
+    #[allow(unused_imports)]
+    #[cfg(target_os = "wasi")]
     use std::os::wasi::prelude::AsFd as _;
 }
 "#;