Update requirements.txt

requirements.txt

@@ -1,11 +1,18 @@
-transformers==4.36.0
+# Use a newer transformers version, LangChain is compatible with it
+transformers>=4.40.0
+# Core LangChain libraries
+langchain
+# Library for using Hugging Face models with LangChain
+langchain-huggingface
+# Other dependencies we still need
 torch
 accelerate
-gradio[oauth]==5.25.2
+gradio[oauth]==5.25.2 # Keeping this pinned for Space compatibility
 uvicorn>=0.14.0
 spaces
 pandas
 beautifulsoup4
 pytz
 requests
-# Cache bust attempt 1
+# Tool-specific dependencies
+duckduckgo-search # A more reliable way to use DuckDuckGo than scraping