diff --git a/aibox_sophon_adapter/models/alarm_models.py b/aibox_sophon_adapter/models/alarm_models.py
index 35413c1..065aebe 100644
--- a/aibox_sophon_adapter/models/alarm_models.py
+++ b/aibox_sophon_adapter/models/alarm_models.py
@@ -44,7 +44,7 @@ class MediaInfo(BaseModel):
     SubId: str = Field(default="", description="关联 GB28181 通道号")
     GBTransport: bool = Field(default=False, description="是否接入 GB28181")
     RtspTransport: bool = Field(default=False, description="是否开启 RTSP 转发")
-    Params: Optional[dict] = Field(default=None, description="预留其他参数")
+    Params: Optional[Any] = Field(default=None, description="预留其他参数，可能是 dict、list 或 null")
 
     @field_validator('MediaWidth', 'MediaHeight', mode='before')
     @classmethod