diff --git a/server_editor.py b/server_editor.py
index aa85ef0..c6f856e 100644
--- a/server_editor.py
+++ b/server_editor.py
@@ -52,7 +52,7 @@ from style_bert_vits2.nlp.japanese.user_dict import (
     rewrite_word,
     update_dict,
 )
-from style_bert_vits2.tts_model import TTSModelHolder
+from style_bert_vits2.tts_model import TTSModelHolder, TTSModelInfo
 
 
 # ---フロントエンド部分に関する処理---
@@ -250,7 +250,7 @@ async def normalize(item: TextRequest):
     return normalize_text(item.text)
 
 
-@router.get("/models_info")
+@router.get("/models_info", response_model=list[TTSModelInfo])
 def models_info():
     return model_holder.models_info
 
diff --git a/style_bert_vits2/tts_model.py b/style_bert_vits2/tts_model.py
index fe4dcb5..527b4ab 100644
--- a/style_bert_vits2/tts_model.py
+++ b/style_bert_vits2/tts_model.py
@@ -1,6 +1,6 @@
 import warnings
 from pathlib import Path
-from typing import Any, Optional, Union, TypedDict
+from typing import Any, Optional, Union
 
 import gradio as gr
 import numpy as np
@@ -8,6 +8,7 @@ import pyannote.audio
 import torch
 from gradio.processing_utils import convert_to_16_bit_wav
 from numpy.typing import NDArray
+from pydantic import BaseModel
 
 from style_bert_vits2.constants import (
     DEFAULT_ASSIST_TEXT_WEIGHT,
@@ -263,7 +264,7 @@ class TTSModel:
         return (self.hyper_parameters.data.sampling_rate, audio)
 
 
-class TTSModelInfo(TypedDict):
+class TTSModelInfo(BaseModel):
     name: str
     files: list[str]
     styles: list[str]
@@ -341,12 +342,12 @@ class TTSModelHolder:
             styles = list(style2id.keys())
             spk2id: dict[str, int] = hyper_parameters.data.spk2id
             speakers = list(spk2id.keys())
-            self.models_info.append({
-                "name": model_dir.name,
-                "files": [str(f) for f in model_files],
-                "styles": styles,
-                "speakers": speakers,
-            })
+            self.models_info.append(TTSModelInfo(
+                name = model_dir.name,
+                files = [str(f) for f in model_files],
+                styles = styles,
+                speakers = speakers,
+            ))
 
 
     def get_model(self, model_name: str, model_path_str: str) -> TTSModel:
diff --git a/tests/test_main.py b/tests/test_main.py
index c5d786f..0c0fe77 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -13,12 +13,12 @@ def synthesize(device: str = 'cpu'):
 
         # jvnv-F2-jp モデルを探す
         for model_info in model_holder.models_info:
-            if model_info['name'] == 'jvnv-F2-jp':
+            if model_info.name == 'jvnv-F2-jp':
                 # すべてのスタイルに対して音声合成を実行
-                for style in model_info['styles']:
+                for style in model_info.styles:
 
                     # 音声合成を実行
-                    model = model_holder.get_model(model_info['name'], model_info['files'][0])
+                    model = model_holder.get_model(model_info.name, model_info.files[0])
                     model.load()
                     sample_rate, audio_data = model.infer(
                         "あらゆる現実を、すべて自分のほうへねじ曲げたのだ。",