diff --git a/vnt-cli/Cargo.toml b/vnt-cli/Cargo.toml
index 0466fe0..4a54ef3 100644
--- a/vnt-cli/Cargo.toml
+++ b/vnt-cli/Cargo.toml
@@ -12,7 +12,6 @@ getopts = "0.2.21"
 console = "0.15.2"
 os_info = "3.7.0"
 serde = "1.0"
-#serde_json = "1.0.94"
 serde_yaml = "0.9.32"
 log = "0.4.17"
 log4rs = "1.2.0"
@@ -41,4 +40,5 @@ server_encrypt=["vnt/server_encrypt"]
 ip_proxy=["vnt/ip_proxy"]
 [build-dependencies]
 embed-manifest = "1.4.0"
-rand = "0.9.0-alpha.0"
\ No newline at end of file
+rand = "0.9.0-alpha.0"
+chrono = "0.4.23"
\ No newline at end of file
diff --git a/vnt-cli/build.rs b/vnt-cli/build.rs
index 7cbf232..81730b5 100644
--- a/vnt-cli/build.rs
+++ b/vnt-cli/build.rs
@@ -3,11 +3,9 @@ use std::fs::File;
 use std::io::Write;
 
 fn main() {
-    // 生成随机序列号
+    let now_time = chrono::Local::now();
     let serial_number = format!(
-        "{}-{}-{}",
-        rand::thread_rng().gen_range(100..1000),
-        rand::thread_rng().gen_range(100..1000),
+        "{}-{}", &now_time.format("%y%m%d%H%M").to_string(),
         rand::thread_rng().gen_range(100..1000)
     );
     let generated_code = format!(r#"pub const SERIAL_NUMBER: &str = "{}";"#, serial_number);