diff --git a/wechat_ipad/client/message.py b/wechat_ipad/client/message.py
index 8c3d1f0..afe1624 100644
--- a/wechat_ipad/client/message.py
+++ b/wechat_ipad/client/message.py
@@ -338,7 +338,7 @@ class MessageMixin(WechatAPIClientBase):
 
         duration = len(audio)
         # Type： AMR = 0, MP3 = 2, SILK = 4, SPEEX = 1, WAVE = 3 VoiceTime ：音频长度 1000为一秒
-        format_dict = {"amr": 0, "wave": 3, "mpe3": 2, "silk": 4, "speex": 1}
+        format_dict = {"amr": 0, "wave": 3, "mp3": 2, "silk": 4, "speex": 1}
         # {
         #     "Base64": "string",
         #     "ToWxid": "string",