diff --git a/az-cvm-vtpm/Cargo.toml b/az-cvm-vtpm/Cargo.toml
index 47f99c7..313f1eb 100644
--- a/az-cvm-vtpm/Cargo.toml
+++ b/az-cvm-vtpm/Cargo.toml
@@ -47,5 +47,5 @@ serde_json = "1.0.107"
 thiserror = "2.0.3"
 sev = "6.2.1"
 ureq = { version = "2.6.2", default-features = false, features = ["json"] }
-zerocopy = { version = "0.7.26", features = ["derive"] }
+zerocopy = { version = "0.8.26", features = ["derive"] }
 hex = "0.4"
diff --git a/az-cvm-vtpm/az-tdx-vtpm/src/imds.rs b/az-cvm-vtpm/az-tdx-vtpm/src/imds.rs
index f9501d4..66bf82c 100644
--- a/az-cvm-vtpm/az-tdx-vtpm/src/imds.rs
+++ b/az-cvm-vtpm/az-tdx-vtpm/src/imds.rs
@@ -4,7 +4,7 @@
 use az_cvm_vtpm::tdx::TdReport;
 use serde::Deserialize;
 use thiserror::Error;
-use zerocopy::AsBytes;
+use zerocopy::IntoBytes;
 
 const IMDS_QUOTE_URL: &str = "http://169.254.169.254/acc/tdquote";
 
diff --git a/az-cvm-vtpm/src/tdx/mod.rs b/az-cvm-vtpm/src/tdx/mod.rs
index 097f8a3..d1e0111 100644
--- a/az-cvm-vtpm/src/tdx/mod.rs
+++ b/az-cvm-vtpm/src/tdx/mod.rs
@@ -6,10 +6,10 @@
 
 use serde::{Deserialize, Serialize};
 use serde_big_array::BigArray;
-use zerocopy::AsBytes;
+use zerocopy::{Immutable, IntoBytes};
 
 #[repr(C)]
-#[derive(AsBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
+#[derive(Immutable, IntoBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
 pub struct ReportType {
     pub r#type: u8,
     pub subtype: u8,
@@ -18,7 +18,7 @@ pub struct ReportType {
 }
 
 #[repr(C)]
-#[derive(AsBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
+#[derive(Immutable, IntoBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
 pub struct ReportMac {
     pub reporttype: ReportType,
     pub _reserved_1: [u8; 12],
@@ -34,14 +34,14 @@ pub struct ReportMac {
 }
 
 #[repr(C)]
-#[derive(AsBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
+#[derive(Immutable, IntoBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
 pub struct Rtmr {
     #[serde(with = "BigArray")]
     pub register_data: [u8; 48],
 }
 
 #[repr(C)]
-#[derive(AsBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
+#[derive(Immutable, IntoBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
 pub struct TdInfo {
     pub attributes: [u8; 8],
     pub xfam: [u8; 8],
@@ -59,7 +59,7 @@ pub struct TdInfo {
 }
 
 #[repr(C)]
-#[derive(AsBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
+#[derive(Immutable, IntoBytes, Copy, Clone, Debug, Serialize, Deserialize, PartialEq)]
 pub struct TdReport {
     pub report_mac: ReportMac,
     #[serde(with = "BigArray")]