diff --git a/apps/server/agents/agent_simulations/decentralized/decentralized_speaker.py b/apps/server/agents/agent_simulations/decentralized/decentralized_speaker.py
index ad317f37..651ebe64 100644
--- a/apps/server/agents/agent_simulations/decentralized/decentralized_speaker.py
+++ b/apps/server/agents/agent_simulations/decentralized/decentralized_speaker.py
@@ -4,8 +4,7 @@
 import tenacity
 from fastapi_sqlalchemy import db
 from langchain.chat_models import ChatOpenAI
-from langchain.schema import (AIMessage, BaseMessage, HumanMessage,
-                              SystemMessage)
+from langchain.schema import HumanMessage, SystemMessage
 
 from agents.agent_simulations.agent.dialogue_agent import DialogueSimulator
 from agents.agent_simulations.agent.dialogue_agent_with_tools import \