diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/task/FetchTask.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/task/FetchTask.java
index 380e0d451..27a68b56b 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/task/FetchTask.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/task/FetchTask.java
@@ -212,7 +212,7 @@ public abstract class FetchTask<T> extends Task<T> {
                 do {
                     HttpRequest.Builder requestBuilder = HttpRequest.newBuilder(currentURI)
                             .timeout(Duration.ofMillis(NetworkUtils.TIME_OUT))
-                            .header("User-Agent", Holder.USER_AGENT);
+                            .header("User-Agent", NetworkUtils.USER_AGENT);
 
                     headers.forEach(requestBuilder::header);
                     response = Holder.HTTP_CLIENT.send(requestBuilder.build(), BODY_HANDLER);
@@ -518,7 +518,6 @@ public abstract class FetchTask<T> extends Task<T> {
     /// Ensure that [#HTTP_CLIENT] is initialized after ProxyManager has been initialized.
     private static final class Holder {
         private static final HttpClient HTTP_CLIENT;
-        private static final String USER_AGENT = System.getProperty("http.agent", "HMCL");
 
         static {
             if (!initialized) {
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/io/NetworkUtils.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/io/NetworkUtils.java
index 689f67564..7ff75a68f 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/io/NetworkUtils.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/io/NetworkUtils.java
@@ -40,6 +40,8 @@ import static org.jackhuang.hmcl.util.logging.Logger.LOG;
  * @author huangyuhui
  */
 public final class NetworkUtils {
+    public static final String USER_AGENT = System.getProperty("http.agent", "HMCL");
+
     public static final String PARAMETER_SEPARATOR = "&";
     public static final String NAME_VALUE_SEPARATOR = "=";
     public static final int TIME_OUT = 8000;
@@ -168,6 +170,7 @@ public final class NetworkUtils {
         connection.setReadTimeout(TIME_OUT);
         if (connection instanceof HttpURLConnection httpConnection) {
             httpConnection.setRequestProperty("Accept-Language", Locale.getDefault().toLanguageTag());
+            httpConnection.setRequestProperty("User-Agent", USER_AGENT);
             httpConnection.setInstanceFollowRedirects(false);
         }
         return connection;