diff --git a/Cargo.toml b/Cargo.toml
index f3e0993..a60ffb3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,5 +4,5 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-clap = "3.0.0-beta.5"
+clap = {version = "4.1.4", features = ["derive"]}
 vmm = { path = "src/vmm" }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index fc88f3d..b372a8e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -19,8 +19,8 @@ struct VMMOpts {
     memory: u32,
 
     /// A level of verbosity, and can be used multiple times
-    #[clap(short, long, parse(from_occurrences))]
-    verbose: i32,
+    #[clap(short, long, action=clap::ArgAction::Count )]
+    verbose: u8,
 
     /// Stdout console file path
     #[clap(long)]
diff --git a/src/vmm/Cargo.toml b/src/vmm/Cargo.toml
index 502ea50..ecc1f6b 100644
--- a/src/vmm/Cargo.toml
+++ b/src/vmm/Cargo.toml
@@ -5,12 +5,12 @@ edition = "2018"
 
 [dependencies]
 epoll = "4.3.1"
-kvm-bindings = { version = "0.5.0", features = ["fam-wrappers"] }
-kvm-ioctls = "0.11.0"
+kvm-bindings = { version = "0.6.0", features = ["fam-wrappers"] }
+kvm-ioctls = "0.13.0"
 libc = "0.2.91"
-linux-loader = { version = "0.4.0", features = ["bzimage", "elf"] }
-vm-memory = { version = "0.7.0", features = ["backend-mmap"] }
-vmm-sys-util = "0.9.0"
+linux-loader = { version = "0.8.1", features = ["bzimage", "elf"] }
+vm-memory = { version = "0.10.0", features = ["backend-mmap"] }
+vmm-sys-util = "0.11.1"
 
 # vm-device is not yet published on crates.io.
 # To make sure that breaking changes to vm-device are not breaking the
@@ -18,3 +18,6 @@ vmm-sys-util = "0.9.0"
 vm-device = { git = "https://github.com/rust-vmm/vm-device", rev = "5847f12" }
 
 vm-superio = "0.4.0"
+serial-line-ip = "0.5.0"
+serde_json = "1.0.94"
+serde = { version = "1.0.126", features = ["derive"] }
\ No newline at end of file
diff --git a/src/vmm/src/kernel.rs b/src/vmm/src/kernel.rs
index b523fad..43e407b 100644
--- a/src/vmm/src/kernel.rs
+++ b/src/vmm/src/kernel.rs
@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: Apache-2.0 OR BSD-3-Clause
-
 #![cfg(target_arch = "x86_64")]
 
 use std::fs::File;
@@ -130,7 +128,8 @@ pub fn kernel_setup(
     bootparams.hdr.cmdline_size = CMDLINE.len() as u32 + 1;
 
     // Load the kernel command line into guest memory.
-    let mut cmdline = Cmdline::new(CMDLINE.len() + 1);
+    let mut cmdline = Cmdline::new(CMDLINE.len() + 1).map_err(Error::Cmdline)?;
+
     cmdline.insert_str(CMDLINE).map_err(Error::Cmdline)?;
     load_cmdline(
         guest_memory,