Update requirements.txt

requirements.txt

@@ -1,8 +1,11 @@
-langchain==0.1.20
-langchainhub==0.1.20
-transformers==4.41.2
-huggingface_hub==0.23.4
-sentence_transformers==2.2.2
-qdrant-client==1.7.3
-PyMuPDF~=1.23.7
-python-dotenv==1.0.0
+gradio==4.19.1
+langchain~=0.1.0
+langchain_mistralai
+langchainhub~=0.1.14
+openai~=1.6.0
+tiktoken~=0.5.2
+transformers>=4.35.2
+huggingface_hub~=0.20.1
+sentence_transformers~=2.2.2
+qdrant-client~=1.7.0
+PyMuPDF~=1.23.7