diff --git a/va416xx/va416xx-hal/Cargo.toml b/va416xx/va416xx-hal/Cargo.toml
index 05b0566..fc8179a 100644
--- a/va416xx/va416xx-hal/Cargo.toml
+++ b/va416xx/va416xx-hal/Cargo.toml
@@ -22,11 +22,11 @@ nb = "1"
 embedded-hal = "1"
 num_enum = { version = "0.7", default-features = false }
 bitflags = "2"
-bitbybit = "1.3"
+bitbybit = "2"
 arbitrary-int = "2"
 fugit = "0.3"
 embedded-can = "0.4"
-embassy-sync = "0.7"
+embassy-sync = "0.8"
 thiserror = { version = "2", default-features = false }
 
 defmt = { version = "1", optional = true }
diff --git a/va416xx/va416xx-hal/src/can/asynch.rs b/va416xx/va416xx-hal/src/can/asynch.rs
index 89cefa7..0fe77d9 100644
--- a/va416xx/va416xx-hal/src/can/asynch.rs
+++ b/va416xx/va416xx-hal/src/can/asynch.rs
@@ -3,6 +3,8 @@ use core::{
     sync::atomic::{AtomicU8, Ordering},
 };
 
+use arbitrary_int::u4;
+
 use crate::can::regs::BufferState;
 
 use super::{
@@ -58,7 +60,7 @@ pub enum InterruptResult {
 pub enum InterruptError {
     UnexpectedError,
     InvalidInterruptId(StatusPending),
-    InvalidStatus(u8),
+    InvalidStatus(u4),
     UnexpectedState(BufferState),
     CanError(DiagnosticRegister),
 }
diff --git a/va416xx/va416xx-hal/src/can/ll.rs b/va416xx/va416xx-hal/src/can/ll.rs
index bdb28df..bb2935d 100644
--- a/va416xx/va416xx-hal/src/can/ll.rs
+++ b/va416xx/va416xx-hal/src/can/ll.rs
@@ -81,7 +81,7 @@ impl CanChannelLowLevel {
     }
 
     #[inline]
-    pub fn read_state(&self) -> Result<BufferState, u8> {
+    pub fn read_state(&self) -> Result<BufferState, u4> {
         self.msg_buf.read_stat_ctrl().state()
     }