diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Dtos/Anthropic/AnthropicInput.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Dtos/Anthropic/AnthropicInput.cs
index 1432a6c0..12474b20 100644
--- a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Dtos/Anthropic/AnthropicInput.cs
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Dtos/Anthropic/AnthropicInput.cs
@@ -12,7 +12,7 @@ public sealed class AnthropicInput
 
     [JsonPropertyName("max_tokens")] public int? MaxTokens { get; set; }
 
-    [JsonPropertyName("messages")] public JsonElement? Messages { get; set; }
+    [JsonPropertyName("messages")] public IList<AnthropicMessageInput> Messages { get; set; }
 
     [JsonPropertyName("tools")] public IList<AnthropicMessageTool>? Tools { get; set; }