diff --git a/crates/kira/Cargo.toml b/crates/kira/Cargo.toml
index b7c0e4bb..6106a47e 100644
--- a/crates/kira/Cargo.toml
+++ b/crates/kira/Cargo.toml
@@ -33,6 +33,9 @@ features = ["wasm-bindgen"]
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 send_wrapper = "0.6.0"
 
+[target.'cfg(not(target_has_atomic = "64"))'.dependencies]
+portable-atomic = "1"
+
 [features]
 default = ["cpal", "mp3", "ogg", "flac", "wav"]
 mp3 = ["symphonia", "symphonia/mp3"]
diff --git a/crates/kira/src/backend/cpal/desktop/stream_manager.rs b/crates/kira/src/backend/cpal/desktop/stream_manager.rs
index 14ca03f1..a4c66f30 100644
--- a/crates/kira/src/backend/cpal/desktop/stream_manager.rs
+++ b/crates/kira/src/backend/cpal/desktop/stream_manager.rs
@@ -3,11 +3,16 @@ mod send_on_drop;
 use std::{
 	sync::{
 		Arc, Mutex,
-		atomic::{AtomicBool, AtomicU64, Ordering},
+		atomic::{AtomicBool, Ordering},
 	},
 	time::Duration,
 };
 
+#[cfg(target_has_atomic = "64")]
+use std::sync::atomic::AtomicU64;
+#[cfg(not(target_has_atomic = "64"))]
+use portable_atomic::AtomicU64;
+
 use super::renderer_with_cpu_usage::RendererWithCpuUsage;
 use cpal::{
 	BufferSize, Device, Stream, StreamConfig, StreamError,
diff --git a/crates/kira/src/clock.rs b/crates/kira/src/clock.rs
index 4972f1ce..8c33a5ba 100644
--- a/crates/kira/src/clock.rs
+++ b/crates/kira/src/clock.rs
@@ -149,9 +149,14 @@ pub use time::*;
 
 use std::sync::{
 	Arc,
-	atomic::{AtomicBool, AtomicU64, Ordering},
+	atomic::{AtomicBool, Ordering},
 };
 
+#[cfg(target_has_atomic = "64")]
+use std::sync::atomic::AtomicU64;
+#[cfg(not(target_has_atomic = "64"))]
+use portable_atomic::AtomicU64;
+
 use crate::{
 	Parameter, Value,
 	command::{ValueChangeCommand, read_commands_into_parameters},
diff --git a/crates/kira/src/sound/static_sound/sound.rs b/crates/kira/src/sound/static_sound/sound.rs
index 4c1e3d69..4773c66c 100644
--- a/crates/kira/src/sound/static_sound/sound.rs
+++ b/crates/kira/src/sound/static_sound/sound.rs
@@ -5,9 +5,14 @@ mod test;
 
 use std::sync::{
 	Arc,
-	atomic::{AtomicU8, AtomicU64, Ordering},
+	atomic::{AtomicU8, Ordering},
 };
 
+#[cfg(target_has_atomic = "64")]
+use std::sync::atomic::AtomicU64;
+#[cfg(not(target_has_atomic = "64"))]
+use portable_atomic::AtomicU64;
+
 use crate::{
 	Decibels, Panning, Parameter, PlaybackRate, StartTime, Tween,
 	command::read_commands_into_parameters,
diff --git a/crates/kira/src/sound/streaming/sound.rs b/crates/kira/src/sound/streaming/sound.rs
index bc44b998..cb859117 100644
--- a/crates/kira/src/sound/streaming/sound.rs
+++ b/crates/kira/src/sound/streaming/sound.rs
@@ -5,9 +5,14 @@ mod test;
 
 use std::sync::{
 	Arc,
-	atomic::{AtomicBool, AtomicU8, AtomicU64, Ordering},
+	atomic::{AtomicBool, AtomicU8, Ordering},
 };
 
+#[cfg(target_has_atomic = "64")]
+use std::sync::atomic::AtomicU64;
+#[cfg(not(target_has_atomic = "64"))]
+use portable_atomic::AtomicU64;
+
 use crate::{
 	Decibels, Panning, Parameter, PlaybackRate, StartTime, Tween,
 	command::read_commands_into_parameters,