diff --git a/requirements.txt b/requirements.txt
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+# Core LangChain components
+langchain>=1.0.0
+langchain-core>=1.1.0
+
+# LLM and Embeddings via Ollama backend (using OpenAI compatibility layer)
+langchain-ollama>=0.1.0
+openai>=1.0.0 # For the ChatOpenAI wrapper structure, even if using a local endpoint
+
+# Vector Store implementation
+qdrant-client>=1.12.0
+langchain-qdrant>=0.1.0
+
+# Utilities for chunking and document handling
+pypdf>=3.0.0
+tiktoken>=0.7.0
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