Update requirements.txt

requirements.txt

@@ -1,13 +1,13 @@
-streamlit==1.25.0
-langchain==0.0.340
-langchain-community==0.0.20
+streamlit
+langchain
+langchain-community
 faiss-cpu==1.7.4
-sentence-transformers==2.2.2
-pypdf==3.8.1
-openai==0.28.0
-docx2txt==0.8
-unstructured==0.10.30
-tiktoken==0.5.2
-requests==2.31.0
-beautifulsoup4==4.12.2
-lxml==4.9.3
+sentence-transformers
+pypdf
+openai
+docx2txt
+unstructured
+tiktoken
+requests
+beautifulsoup4
+lxml