diff --git a/plugins/updater/src/commands.rs b/plugins/updater/src/commands.rs
index 0039fe46..d7c51ab9 100644
--- a/plugins/updater/src/commands.rs
+++ b/plugins/updater/src/commands.rs
@@ -4,10 +4,12 @@
 
 use crate::{PendingUpdate, Result, UpdaterExt};
 
-use serde::Serialize;
+use http::header;
+use serde::{Deserialize, Deserializer, Serialize};
 use tauri::{api::ipc::Channel, AppHandle, Runtime, State};
 
 use std::{
+    collections::HashMap,
     sync::atomic::{AtomicBool, Ordering},
     time::Duration,
 };
@@ -43,17 +45,43 @@ pub(crate) struct Metadata {
     body: Option<String>,
 }
 
+#[derive(Debug, Default)]
+pub(crate) struct HeaderMap(header::HeaderMap);
+
+impl<'de> Deserialize<'de> for HeaderMap {
+    fn deserialize<D>(deserializer: D) -> std::result::Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let map = HashMap::<String, String>::deserialize(deserializer)?;
+        let mut headers = header::HeaderMap::default();
+        for (key, value) in map {
+            if let (Ok(key), Ok(value)) = (
+                header::HeaderName::from_bytes(key.as_bytes()),
+                header::HeaderValue::from_str(&value),
+            ) {
+                headers.insert(key, value);
+            } else {
+                return Err(serde::de::Error::custom(format!(
+                    "invalid header `{key}` `{value}`"
+                )));
+            }
+        }
+        Ok(Self(headers))
+    }
+}
+
 #[tauri::command]
 pub(crate) async fn check<R: Runtime>(
     app: AppHandle<R>,
     pending: State<'_, PendingUpdate>,
-    headers: Option<Vec<(String, String)>>,
+    headers: Option<HeaderMap>,
     timeout: Option<u64>,
     target: Option<String>,
 ) -> Result<Metadata> {
     let mut builder = app.updater_builder();
     if let Some(headers) = headers {
-        for (k, v) in headers.into_iter() {
+        for (k, v) in headers.0.iter() {
             builder = builder.header(k, v)?;
         }
     }