diff --git a/aliyun-oss-wordpress.php b/aliyun-oss-wordpress.php
index 9073338..03f55ed 100644
--- a/aliyun-oss-wordpress.php
+++ b/aliyun-oss-wordpress.php
@@ -3,7 +3,7 @@
 Plugin Name: OSS Aliyun
 Plugin URI: https://github.com/sy-records/aliyun-oss-wordpress
 Description: 使用阿里云对象存储 OSS 作为附件存储空间。（This is a plugin that uses Aliyun Object Storage Service for attachments remote saving.）
-Version: 1.4.16
+Version: 1.4.17
 Author: 沈唁
 Author URI: https://qq52o.me
 License: Apache2.0
@@ -19,7 +19,7 @@ use OSS\Credentials\CredentialsProvider;
 use AlibabaCloud\Credentials\Credential;
 use OSS\Credentials\StaticCredentialsProvider;
 
-define('OSS_VERSION', '1.4.16');
+define('OSS_VERSION', '1.4.17');
 define('OSS_BASEFOLDER', plugin_basename(dirname(__FILE__)));
 
 if (!function_exists('get_home_path')) {
@@ -103,11 +103,12 @@ function oss_get_client()
 function oss_get_bucket_endpoint($oss_options)
 {
     $regional = esc_attr($oss_options['regional']);
+    $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') || (!empty($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == 443) ? 'https' : 'http';
     if ($oss_options['is_internal'] == 'true') {
-        return "https://{$regional}-internal.aliyuncs.com";
+        return "{$protocol}://{$regional}-internal.aliyuncs.com";
     }
 
-    return "https://{$regional}.aliyuncs.com";
+    return "{$protocol}://{$regional}.aliyuncs.com";
 }
 
 function oss_get_bucket_name()
diff --git a/readme.txt b/readme.txt
index 0f3a77a..9c8afd3 100644
--- a/readme.txt
+++ b/readme.txt
@@ -5,7 +5,7 @@ Tags: oss, 阿里云, 对象存储, aliyun
 Requires at least: 4.6
 Tested up to: 6.6
 Requires PHP: 7.1
-Stable tag: 1.4.16
+Stable tag: 1.4.17
 License: Apache2.0
 License URI: http://www.apache.org/licenses/LICENSE-2.0.html
 
@@ -76,6 +76,10 @@ License URI: http://www.apache.org/licenses/LICENSE-2.0.html
 
 == Changelog ==
 
+= 1.4.17 =
+
+- Fix endpoint failed to use https
+
 = 1.4.16 =
 
 - 强制 endpoint 使用 https