diff --git a/luisa_compute/src/lang/poly.rs b/luisa_compute/src/lang/poly.rs
index 8c4f063..a45611f 100644
--- a/luisa_compute/src/lang/poly.rs
+++ b/luisa_compute/src/lang/poly.rs
@@ -37,16 +37,14 @@ pub trait PolymorphicImpl<T: ?Sized + 'static>: Value {
 }
 #[macro_export]
 macro_rules! impl_new_poly_array {
-    ($buffer:expr, $tag:expr, $key:expr)=>{
-        {
-            let buffer = unsafe { $buffer.shallow_clone() };
-            luisa_compute::PolyArray::new(
-                $tag,
-                $key,
-                Box::new(move |_, index| Box::new(buffer.var().read(index))),
-            )
-        }
-    }
+    ($buffer:expr, $tag:expr, $key:expr) => {{
+        let buffer = unsafe { $buffer.shallow_clone() };
+        luisa_compute::PolyArray::new(
+            $tag,
+            $key,
+            Box::new(move |_, index| Box::new(buffer.var().read(index))),
+        )
+    }};
 }
 #[macro_export]
 macro_rules! impl_polymorphic {
@@ -163,17 +161,11 @@ impl<K: Hash + Eq + Clone + 'static + Debug, T: ?Sized + 'static> PolymorphicBui
                     let r = &mut array[index];
                     r as &mut dyn Any
                 }),
-                build: Box::new(
-                    move |array: &dyn Any, device: Device| -> PolyArray<K, T> {
-                        let array = array.downcast_ref::<Vec<U>>().unwrap();
-                        let buffer = device.create_buffer_from_slice(&array);
-                        PolymorphicImpl::<T>::new_poly_array(
-                            &buffer,
-                            tag as i32,
-                            key.clone(),
-                        )
-                    },
-                ),
+                build: Box::new(move |array: &dyn Any, device: Device| -> PolyArray<K, T> {
+                    let array = array.downcast_ref::<Vec<U>>().unwrap();
+                    let buffer = device.create_buffer_from_slice(&array);
+                    PolymorphicImpl::<T>::new_poly_array(&buffer, tag as i32, key.clone())
+                }),
                 array: Box::new(Vec::<U>::new()),
             });
             tag
@@ -222,7 +214,14 @@ pub struct Polymorphic<DevirtualizationKey, Trait: ?Sized + 'static> {
     key_typeid_to_tag: HashMap<(DevirtualizationKey, TypeId), u32>,
     key_to_tag: HashMap<DevirtualizationKey, Option<u32>>,
 }
-
+unsafe impl<DevirtualizationKey: Send, Trait: ?Sized + 'static> Send
+    for Polymorphic<DevirtualizationKey, Trait>
+{
+}
+unsafe impl<DevirtualizationKey: Sync, Trait: ?Sized + 'static> Sync
+    for Polymorphic<DevirtualizationKey, Trait>
+{
+}
 pub struct PolymorphicRef<'a, DevirtualizationKey, Trait: ?Sized + 'static> {
     parent: &'a Polymorphic<DevirtualizationKey, Trait>,
     pub tag_index: Expr<TagIndex>,
diff --git a/luisa_compute/src/rtx.rs b/luisa_compute/src/rtx.rs
index 0b4f6c5..02079c6 100644
--- a/luisa_compute/src/rtx.rs
+++ b/luisa_compute/src/rtx.rs
@@ -48,12 +48,15 @@ impl Drop for ProceduralPrimitiveHandle {
         self.device.inner.destroy_procedural_primitive(self.handle);
     }
 }
+unsafe impl Send for ProceduralPrimitiveHandle {}
+unsafe impl Sync for ProceduralPrimitiveHandle {}
 pub struct ProceduralPrimitive {
     pub(crate) handle: Arc<ProceduralPrimitiveHandle>,
     pub(crate) aabb_buffer: api::Buffer,
     pub(crate) aabb_buffer_offset: usize,
     pub(crate) aabb_buffer_count: usize,
 }
+
 impl ProceduralPrimitive {
     pub fn native_handle(&self) -> *mut std::ffi::c_void {
         self.handle.native_handle
diff --git a/luisa_compute/src/runtime.rs b/luisa_compute/src/runtime.rs
index 8adb9f6..b267e0e 100644
--- a/luisa_compute/src/runtime.rs
+++ b/luisa_compute/src/runtime.rs
@@ -577,6 +577,9 @@ pub struct Stream {
     pub(crate) handle: Arc<StreamHandle>,
 }
 
+unsafe impl Send for Stream {}
+unsafe impl Sync for Stream {}
+
 impl StreamHandle {
     #[inline]
     pub(crate) fn device(&self) -> Arc<DeviceHandle> {
diff --git a/luisa_compute_sys/LuisaCompute b/luisa_compute_sys/LuisaCompute
index 40d9ffe..bbdc663 160000
--- a/luisa_compute_sys/LuisaCompute
+++ b/luisa_compute_sys/LuisaCompute
@@ -1 +1 @@
-Subproject commit 40d9ffeade76ca116004afe17748100cfc450ddf
+Subproject commit bbdc66328c69cb23669d063c14b2727171fb9aea