Update requirements.txt

requirements.txt

@@ -1,9 +1,9 @@
-langchain==0.1.16
-pypdf==4.2.0
-sentence-transformers==2.7.0
-faiss-cpu==1.8.0
-transformers==4.41.2
-accelerate==0.30.1
-gradio==4.27.0
-python-dotenv==1.0.1
-torch==2.3.1 --extra-index-url https://download.pytorch.org/whl/cpu
+langchain==0.1.0
+pypdf==3.17.0
+sentence-transformers==2.2.2
+faiss-cpu==1.7.4
+transformers==4.37.2
+accelerate==0.27.0
+gradio==4.13.0
+bitsandbytes==0.42.0
+torch==2.1.0