diff --git a/luisa_compute/src/lang/poly.rs b/luisa_compute/src/lang/poly.rs
index e3574a6..c131b02 100644
--- a/luisa_compute/src/lang/poly.rs
+++ b/luisa_compute/src/lang/poly.rs
@@ -78,7 +78,7 @@ impl<K: 'static, T: ?Sized + 'static> PolyVec<K, T> {
     }
 }
 
-#[derive(Clone, Copy, Debug, Value, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Clone, Copy, Debug, Soa, Value, PartialEq, Eq, PartialOrd, Ord, Hash)]
 #[repr(C)]
 #[value_new(pub)]
 pub struct TagIndex {
diff --git a/luisa_compute_sys/LuisaCompute b/luisa_compute_sys/LuisaCompute
index 3015047..a28ad82 160000
--- a/luisa_compute_sys/LuisaCompute
+++ b/luisa_compute_sys/LuisaCompute
@@ -1 +1 @@
-Subproject commit 30150473b3f772d59f416cb2fb5cd3e796c085a9
+Subproject commit a28ad8283971e1796c7ac22e5129c086637ecbc1