Update app.py

app.py

@@ -15,7 +15,7 @@ load_dotenv()
 
 # RAG pipeline imports and setup code
 # Get the DeveloperWeek PDF file (future implementation: direct download from URL)
-from langchain.document_loaders import PyMuPDFLoader
+from langchain_community.document_loaders import PyMuPDFLoader
 
 # Adjust the URL to the direct download format
 file_id = "1JeA-w4kvbI3GHk9Dh_j19_Q0JUDE7hse"