diff --git a/mkgui/app.py b/mkgui/app.py
index 630dee1f..259ff430 100644
--- a/mkgui/app.py
+++ b/mkgui/app.py
@@ -11,7 +11,7 @@
 from mkgui.base.components.types import FileContent
 from vocoder.hifigan import inference as gan_vocoder
 from synthesizer.inference import Synthesizer
-from typing import Any
+from typing import Any, Tuple
 import matplotlib.pyplot as plt
 
 # Constants
@@ -73,7 +73,7 @@ class AudioEntity(BaseModel):
     mel: Any
 
 class Output(BaseModel):
-    __root__: tuple[AudioEntity, AudioEntity]
+    __root__: Tuple[AudioEntity, AudioEntity]
 
     def render_output_ui(self, streamlit_app, input) -> None:  # type: ignore
         """Custom output UI.
diff --git a/mkgui/app_vc.py b/mkgui/app_vc.py
index 3e4c793f..2f658ac5 100644
--- a/mkgui/app_vc.py
+++ b/mkgui/app_vc.py
@@ -71,7 +71,7 @@ class Input(BaseModel):
         description="选择语音转换模型文件."
     )
     vocoder: vocoders = Field(
-        ..., alias="语音编码模型", 
+        ..., alias="语音解码模型", 
         description="选择语音解码模型文件(目前只支持HifiGan类型)."
     )