diff --git a/Lagrange.Core/Internal/Context/FlashTransferContext.cs b/Lagrange.Core/Internal/Context/FlashTransferContext.cs
index d5124819..f9d248a6 100644
--- a/Lagrange.Core/Internal/Context/FlashTransferContext.cs
+++ b/Lagrange.Core/Internal/Context/FlashTransferContext.cs
@@ -22,7 +22,7 @@ internal FlashTransferContext(BotContext botContext)
         _url = "https://multimedia.qfile.qq.com/sliceupload";
     }
 
-    public async Task<bool> UploadFile(string uKey, Stream bodyStream)
+    public async Task<bool> UploadFile(string uKey, uint appId, Stream bodyStream)
     {
         var sha1StateVs = new FlashTransferSha1StateV { State = [] };
         var chunkCount = (uint)((bodyStream.Length + ChunkSize - 1) / ChunkSize);
@@ -61,19 +61,19 @@ public async Task<bool> UploadFile(string uKey, Stream bodyStream)
             var uploadBuffer = new byte[chunkLength];
             await bodyStream.ReadExactlyAsync(uploadBuffer, 0, chunkLength);
 
-            var success = await UploadChunk(uKey, (uint)chunkStart, sha1StateVs, uploadBuffer);
+            var success = await UploadChunk(uKey, appId, (uint)chunkStart, sha1StateVs, uploadBuffer);
             if (!success) return false;
         }
 
         return true;
     }
 
-    private async Task<bool> UploadChunk(string uKey, uint start, FlashTransferSha1StateV chunkSha1S, byte[] body)
+    private async Task<bool> UploadChunk(string uKey, uint appId, uint start, FlashTransferSha1StateV chunkSha1S, byte[] body)
     {
         var req = new FlashTransferUploadReq
         {
             FieId1 = 0,
-            AppId = 1407,
+            AppId = appId,
             FileId3 = 2,
             Body = new FlashTransferUploadBody
             {
diff --git a/Lagrange.Core/Internal/Packets/Service/FlashTransferUploadReq.cs b/Lagrange.Core/Internal/Packets/Service/FlashTransferUploadReq.cs
index f44213e1..7859cf27 100644
--- a/Lagrange.Core/Internal/Packets/Service/FlashTransferUploadReq.cs
+++ b/Lagrange.Core/Internal/Packets/Service/FlashTransferUploadReq.cs
@@ -7,7 +7,7 @@ namespace Lagrange.Core.Internal.Packets.Service;
 internal partial class FlashTransferUploadReq
 {
     [ProtoMember(1)] public uint FieId1 { get; set; } // 0
-    [ProtoMember(2)] public uint AppId { get; set; } // 1407
+    [ProtoMember(2)] public uint AppId { get; set; } // 1402: 私信语音, 1403: 群语音, 1413: 私信视频, 1414: 私信视频封面, 1415: 群视频, 1416: 群视频封面, 1406: 私信图片, 1407: 群聊图片, 14901: 闪传, 14903: 闪传封面
     [ProtoMember(3)] public uint FileId3 { get; set; } // 0
     [ProtoMember(107)] public FlashTransferUploadBody Body { get; set; }
 }
diff --git a/Lagrange.Core/Message/Entities/ImageEntity.cs b/Lagrange.Core/Message/Entities/ImageEntity.cs
index 9d830634..9ac5ddf0 100644
--- a/Lagrange.Core/Message/Entities/ImageEntity.cs
+++ b/Lagrange.Core/Message/Entities/ImageEntity.cs
@@ -48,11 +48,11 @@ public override async Task Preprocess(BotContext context, BotMessage message)
                 // Aot 和 MacOS 下使用 FlashTransfer 上传
                 if (RuntimeFeature.IsDynamicCodeCompiled && !RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
                 {
-                    await context.HighwayContext.UploadFile(Stream.Value, message.IsGroup() ? 1004 : 1003, ProtoHelper.Serialize(result.Ext));
+                    await context.HighwayContext.UploadFile(Stream.Value, IsGroup ? 1004 : 1003, ProtoHelper.Serialize(result.Ext));
                 }
                 else
                 {
-                    await context.FlashTransferContext.UploadFile(result.Ext.UKey, Stream.Value);
+                    await context.FlashTransferContext.UploadFile(result.Ext.UKey, (uint)(IsGroup ? 1407 : 1406), Stream.Value);
                 }
             }
         }