diff --git a/Cargo.toml b/Cargo.toml
index 70361816..e12915c1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,10 +10,10 @@ version = "0.15.0"
 crate-type = ["cdylib"]
 
 [dependencies]
-napi = {version="2.14", features=["napi9", "tokio_rt"]}
+napi = {version="=2.14", features=["napi9", "tokio_rt"]}
 napi-derive = "2.14"
 uuid = {version="1.6.1", features = ["v4","fast-rng"]}
-web-audio-api = "0.41.1"
+web-audio-api = "0.42"
 # web-audio-api = { path = "../web-audio-api-rs" }
 
 [target.'cfg(all(any(windows, unix), target_arch = "x86_64", not(target_env = "musl")))'.dependencies]
diff --git a/src/media_devices/get_user_media.rs b/src/media_devices/get_user_media.rs
index de8e70c9..452ec273 100644
--- a/src/media_devices/get_user_media.rs
+++ b/src/media_devices/get_user_media.rs
@@ -47,6 +47,13 @@ pub(crate) fn napi_get_user_media(ctx: CallContext) -> Result<JsObject> {
                     constraints.latency = Some(latency);
                 }
 
+                if let Ok(Some(js_channel_count)) =
+                    js_constraints.get::<&str, JsNumber>("channelCount")
+                {
+                    let channel_count = js_channel_count.get_uint32()?;
+                    constraints.channel_count = Some(channel_count);
+                }
+
                 MediaStreamConstraints::AudioWithConstraints(constraints)
             } else {
                 return Err(napi::Error::from_reason(
diff --git a/wpt b/wpt
index d99b032d..51c87dc4 160000
--- a/wpt
+++ b/wpt
@@ -1 +1 @@
-Subproject commit d99b032d98eb39b2222e9b824a5f6cdff28c883f
+Subproject commit 51c87dc4c5d4a61caef22344e4dba6f5f233ffc3