diff --git a/src/main.rs b/src/main.rs
index 59d731e4..c30bcbdb 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -124,19 +124,19 @@ impl App {
             } else {
                 None
             };
-            let now_version = configs::CONFIG.read().unwrap().app.get_version().unwrap();
+            let now_version = &format!("v{}",configs::CONFIG.read().unwrap().app.get_version().unwrap());
             if latest_version_data.is_some()
                 && now_version
                     != latest_version_data
                         .as_ref()
-                        .unwrap_or(&now_version.to_string())
+                        .unwrap_or(now_version)
             {
                 write_color_buffer(
                     &BufferWriter::stdout(ColorChoice::Always),
                     None,
                     &format!(
                         "There is a new version of Hayabusa: {}",
-                        latest_version_data.unwrap()
+                        latest_version_data.unwrap().replace('\"',"")
                     ),
                     true,
                 )
diff --git a/src/options/update.rs b/src/options/update.rs
index 61d19180..97d3fee5 100644
--- a/src/options/update.rs
+++ b/src/options/update.rs
@@ -1,3 +1,4 @@
+use serde_json::Value;
 use crate::detections::message::AlertMessage;
 use crate::detections::utils::write_color_buffer;
 use crate::filter;
@@ -21,15 +22,19 @@ pub struct Update {}
 impl Update {
     /// get latest hayabusa version number.
     pub fn get_latest_hayabusa_version() -> Result<Option<String>, Box<dyn std::error::Error>> {
-        let res = reqwest::blocking::get(
+        let res = reqwest::blocking::Client::new().get(
             "https://api.github.com/repos/Yamato-Security/hayabusa/releases/latest",
-        )?
-        .json::<std::collections::HashMap<String, String>>()?;
-        if let Some(o) = res.get("tag_name") {
-            Ok(Some(o.to_owned()))
-        } else {
+        ).header("User-Agent", "HayabusaUpdateChecker")
+        .header("Accept", "application/vnd.github.v3+json").send()?;
+        let text = res.text()?;
+        let json_res:Value =  serde_json::from_str(&text)?;
+
+        if json_res["tag_name"].is_null() {
             Ok(None)
+         } else {
+            Ok(Some(json_res["tag_name"].to_string()))
         }
+        
     }
 
     /// update rules(hayabusa-rules subrepository)