Update requirements.txt

requirements.txt

@@ -2,22 +2,23 @@
 gradio>=5.0.0
 python-dotenv
 
-# LangChain Core
-langchain>=0.1.0
-langchain-core>=0.1.0
-langchain-community>=0.0.20
+# LangChain - MUST include all these packages
+langchain>=0.3.0
+langchain-core>=0.3.0
+langchain-community>=0.3.0
+langchain-text-splitters>=0.3.0
 
 # HuggingFace Integration
-langchain-huggingface
-huggingface-hub
-sentence-transformers
+langchain-huggingface>=0.1.0
+huggingface-hub>=0.20.0
+sentence-transformers>=2.2.0
 
 # Vector Database
-chromadb
-langchain-chroma
+chromadb>=0.4.0
+langchain-chroma>=0.1.0
 
 # Document Processing
-unstructured[md]
+unstructured[md]>=0.10.0
 markdown
 
 # PyTorch (CPU version for deployment)
@@ -25,5 +26,6 @@ torch
 torchvision
 torchaudio
 
-# Additional dependencies for unstructured
-aiofiles>=24.1.0
+# Additional dependencies
+aiofiles>=24.1.0
+pydantic>=2.0.0