diff --git a/noodles-fasta/CHANGELOG.md b/noodles-fasta/CHANGELOG.md
index 6fd9dc5ec..e76f2ee6b 100644
--- a/noodles-fasta/CHANGELOG.md
+++ b/noodles-fasta/CHANGELOG.md
@@ -6,12 +6,18 @@
 
   * fasta/fai: Move reader (`Reader`) and writer (`Writer`) to `io` module.
 
+  * fasta/fai/async: Move reader (`Reader`) to `io` module.
+
 ### Deprecated
 
   * fasta/fai: Deprecate `Reader` and `Writer`.
 
     Use `fai::io::Reader` and `fai::io::Writer`, respectively, instead.
 
+  * fasta/fai/async: Deprecate `Reader` and `Writer`.
+
+    Use `fai::r#async::io::Reader` instead.
+
 ## 0.43.0 - 2024-09-04
 
 ### Changed
diff --git a/noodles-fasta/src/fai.rs b/noodles-fasta/src/fai.rs
index 3d671aaa6..36f5b7214 100644
--- a/noodles-fasta/src/fai.rs
+++ b/noodles-fasta/src/fai.rs
@@ -1,7 +1,7 @@
 //! FASTA index (FAI) and fields.
 
 #[cfg(feature = "async")]
-mod r#async;
+pub mod r#async;
 
 mod index;
 pub mod io;
@@ -16,7 +16,8 @@ pub use self::io::Reader;
 pub use self::io::Writer;
 
 #[cfg(feature = "async")]
-pub use self::r#async::Reader as AsyncReader;
+#[deprecated(since = "0.44.0", note = "Use `fai::r#async::io::Reader` instead.")]
+pub use self::r#async::io::Reader as AsyncReader;
 
 use std::{fs::File, io::BufReader, path::Path};
 
diff --git a/noodles-fasta/src/fai/async.rs b/noodles-fasta/src/fai/async.rs
index 2a1c49239..117abd814 100644
--- a/noodles-fasta/src/fai/async.rs
+++ b/noodles-fasta/src/fai/async.rs
@@ -1,3 +1,3 @@
-mod reader;
+//! Async FAI.
 
-pub use self::reader::Reader;
+pub mod io;
diff --git a/noodles-fasta/src/fai/async/io.rs b/noodles-fasta/src/fai/async/io.rs
new file mode 100644
index 000000000..10bc2557b
--- /dev/null
+++ b/noodles-fasta/src/fai/async/io.rs
@@ -0,0 +1,5 @@
+//! Async FAI I/O.
+
+mod reader;
+
+pub use self::reader::Reader;
diff --git a/noodles-fasta/src/fai/async/reader.rs b/noodles-fasta/src/fai/async/io/reader.rs
similarity index 92%
rename from noodles-fasta/src/fai/async/reader.rs
rename to noodles-fasta/src/fai/async/io/reader.rs
index dcb845836..bf41ef5e5 100644
--- a/noodles-fasta/src/fai/async/reader.rs
+++ b/noodles-fasta/src/fai/async/io/reader.rs
@@ -18,7 +18,7 @@ where
     /// ```
     /// use noodles_fasta::fai;
     /// let data = [];
-    /// let mut reader = fai::AsyncReader::new(&data[..]);
+    /// let mut reader = fai::r#async::io::Reader::new(&data[..]);
     /// ```
     pub fn new(inner: R) -> Self {
         Self { inner }
@@ -38,7 +38,7 @@ where
     /// use noodles_fasta::fai;
     ///
     /// let data = b"sq0\t13\t5\t80\t81\nsq1\t21\t19\t80\t81\n";
-    /// let mut reader = fai::AsyncReader::new(&data[..]);
+    /// let mut reader = fai::r#async::io::Reader::new(&data[..]);
     ///
     /// let index = reader.read_index().await?;
     ///