Update graph_builder.py

graph_builder.py

@@ -1,7 +1,8 @@
 from langgraph.graph import StateGraph
 from langchain_core.tools import Tool
 from langchain_community.chat_models import ChatOpenAI
-from langchain_tavily import TavilySearchAPIWrapper
+from langchain_community.tools.tavily_search import TavilySearchAPIWrapper
+
 
 def build_graph():
     graph = StateGraph(dict)