diff --git a/database.py b/database.py
index 38d4171..de5b809 100644
--- a/database.py
+++ b/database.py
@@ -5978,7 +5978,7 @@ class AIConversationSummary(Base):
     conversation_id = Column(Integer, ForeignKey('ai_chat_conversations.id', ondelete='CASCADE'), nullable=False, unique=True)
     user_id = Column(Integer, ForeignKey('users.id', ondelete='CASCADE'), nullable=False)
     summary = Column(Text, nullable=False)
-    key_topics = Column(JSON, default=list)
+    key_topics = Column(JSONBType, default=list)
     created_at = Column(DateTime, default=datetime.utcnow)
     updated_at = Column(DateTime, default=datetime.utcnow)