diff --git a/bridge/bridge.py b/bridge/bridge.py
index 26d5440..5c8448e 100644
--- a/bridge/bridge.py
+++ b/bridge/bridge.py
@@ -14,7 +14,7 @@ class Bridge(object):
         self.btype={
             "chat": const.CHATGPT,
             "voice_to_text": conf().get("voice_to_text", "openai"),
-            "text_to_voice": conf().get("text_to_voice", "baidu")
+            "text_to_voice": conf().get("text_to_voice", "google")
         }
         model_type = conf().get("model")
         if model_type in ["text-davinci-003"]:
diff --git a/requirements.txt b/requirements.txt
index ca08960..5cd0952 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,5 @@ SpeechRecognition>=3.10.0
 tiktoken>=0.3.2
 webuiapi>=0.6.2
 wechaty>=0.10.7
-wechaty_puppet>=0.4.23
\ No newline at end of file
+wechaty_puppet>=0.4.23
+chardet>=5.1.0
\ No newline at end of file