diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index ebae252ef5..1eeb12bbe0 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
-channel = "nightly-2023-12-01"
+channel = "nightly-2023-12-15"
 components = [
     "llvm-tools",
     "rust-src",
diff --git a/src/drivers/virtio/transport/mmio.rs b/src/drivers/virtio/transport/mmio.rs
index cb3465d98f..77152f4292 100644
--- a/src/drivers/virtio/transport/mmio.rs
+++ b/src/drivers/virtio/transport/mmio.rs
@@ -4,7 +4,6 @@
 #![allow(dead_code)]
 
 use core::convert::TryInto;
-use core::intrinsics::unaligned_volatile_store;
 use core::ptr::{read_volatile, write_volatile};
 use core::result::Result;
 use core::sync::atomic::{fence, Ordering};
@@ -297,22 +296,16 @@ impl NotifCtrl {
 		fence(Ordering::Acquire);
 
 		if self.f_notif_data {
-			let ptr = self.notif_addr;
+			let ptr = self.notif_addr as *mut [u8; 4];
 
 			unsafe {
-				unaligned_volatile_store(
-					ptr,
-					u32::from_ne_bytes(notif_data[0..4].try_into().unwrap()),
-				);
+				ptr.write_volatile(notif_data[0..4].try_into().unwrap());
 			}
 		} else {
-			let ptr = self.notif_addr as *mut u16;
+			let ptr = self.notif_addr as *mut [u8; 2];
 
 			unsafe {
-				unaligned_volatile_store(
-					ptr,
-					u16::from_ne_bytes(notif_data[0..2].try_into().unwrap()),
-				);
+				ptr.write_volatile(notif_data[0..2].try_into().unwrap());
 			}
 		}
 
diff --git a/src/drivers/virtio/transport/pci.rs b/src/drivers/virtio/transport/pci.rs
index d581ef6a8b..03b4ad9a20 100644
--- a/src/drivers/virtio/transport/pci.rs
+++ b/src/drivers/virtio/transport/pci.rs
@@ -4,7 +4,6 @@
 #![allow(dead_code)]
 
 use alloc::vec::Vec;
-use core::intrinsics::unaligned_volatile_store;
 use core::result::Result;
 use core::sync::atomic::{fence, Ordering};
 use core::{mem, ptr};
@@ -720,22 +719,16 @@ impl NotifCtrl {
 		fence(Ordering::Acquire);
 
 		if self.f_notif_data {
-			let ptr = self.notif_addr as *mut u32;
+			let ptr = self.notif_addr as *mut [u8; 4];
 
 			unsafe {
-				unaligned_volatile_store(
-					ptr,
-					u32::from_ne_bytes(notif_data[0..4].try_into().unwrap()),
-				);
+				ptr.write_volatile(notif_data[0..4].try_into().unwrap());
 			}
 		} else {
-			let ptr = self.notif_addr as *mut u16;
+			let ptr = self.notif_addr as *mut [u8; 2];
 
 			unsafe {
-				unaligned_volatile_store(
-					ptr,
-					u16::from_ne_bytes(notif_data[0..2].try_into().unwrap()),
-				);
+				ptr.write_volatile(notif_data[0..2].try_into().unwrap());
 			}
 		}
 
diff --git a/src/lib.rs b/src/lib.rs
index dae21bb324..2bda8c3e6b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -15,7 +15,7 @@
 #![cfg_attr(target_arch = "riscv64", feature(offset_of))]
 #![feature(allocator_api)]
 #![feature(asm_const)]
-#![feature(core_intrinsics)]
+#![feature(exposed_provenance)]
 #![feature(linked_list_cursors)]
 #![feature(maybe_uninit_slice)]
 #![feature(naked_functions)]