parse and index refinements to lower versions

requirements.txt

@@ -1,11 +1,11 @@
 streamlit >= 1.32.2
 chromadb >= 0.4.24
-llama_index >= 0.10.40
+llama_index == 0.10.40
 langchain_community >= 0.0.29    
 langchain >= 0.1.0
 langchain_groq >= 0.1.9
 langchain_core >= 0.2.33
-llama_parse >= 0.4.2
+llama_parse == 0.4.2
 langchain_huggingface >= 0.0.3
 unstructured >= 0.11.6
 streamlit_chat >= 0.1.1