diff --git a/rust-toolchain b/rust-toolchain
index 13f3349f5b59..8211845cb456 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2023-12-07"
+channel = "nightly-2023-12-10"
 components = ["rust-src", "rustc-dev", "llvm-tools"]
diff --git a/src/intrinsics/simd.rs b/src/intrinsics/simd.rs
index 5997e6026b41..64d05ebaaa81 100644
--- a/src/intrinsics/simd.rs
+++ b/src/intrinsics/simd.rs
@@ -1059,7 +1059,7 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
         }
 
         sym::simd_scatter => {
-            intrinsic_args!(fx, args => (mask, ptr, val); intrinsic);
+            intrinsic_args!(fx, args => (val, ptr, mask); intrinsic);
 
             let (val_lane_count, _val_lane_ty) = val.layout().ty.simd_size_and_type(fx.tcx);
             let (ptr_lane_count, _ptr_lane_ty) = ptr.layout().ty.simd_size_and_type(fx.tcx);