diff --git a/bot/linkai/link_ai_bot.py b/bot/linkai/link_ai_bot.py
index d37d82a..f142d97 100644
--- a/bot/linkai/link_ai_bot.py
+++ b/bot/linkai/link_ai_bot.py
@@ -92,7 +92,7 @@ class LinkAIBot(Bot):
                 "frequency_penalty": conf().get("frequency_penalty", 0.0),  # [-2,2]之间，该值越大则更倾向于产生不同的内容
                 "presence_penalty": conf().get("presence_penalty", 0.0),  # [-2,2]之间，该值越大则更倾向于产生不同的内容
                 "session_id": session_id,
-                "channel_type": conf().get("channel_type")
+                "channel_type": conf().get("channel_type", "wx")
             }
             try:
                 from linkai import LinkAIClient
diff --git a/requirements-optional.txt b/requirements-optional.txt
index bae0e37..74f1780 100644
--- a/requirements-optional.txt
+++ b/requirements-optional.txt
@@ -33,7 +33,7 @@ broadscope_bailian
 google-generativeai
 
 # linkai
-linkai
+linkai>=0.0.3.5
 
 # dingtalk
 dingtalk_stream