Update requirements.txt

requirements.txt

@@ -1,22 +1,23 @@
 # Core dependencies
-gradio==4.7.1
-openai==1.3.5
-chromadb==0.4.18
-python-dotenv==1.0.0
+gradio>=4.7.1
+openai>=1.3.5
+chromadb>=0.4.18
+python-dotenv>=1.0.0
 
 # Vector store and embeddings
-sentence-transformers==2.2.2
-torch==2.1.1
-transformers==4.35.2
+sentence-transformers>=2.2.2
+--extra-index-url https://download.pytorch.org/whl/cpu
+torch>=2.1.1
+transformers>=4.35.2
 
 # Database and storage
-hnswlib==0.7.0
+hnswlib>=0.7.0
 
 # Utility packages
-requests==2.31.0
-python-json-logger==2.0.7
-numpy==1.24.3
-pydantic~=1.0
+requests>=2.31.0
+python-json-logger>=2.0.7
+numpy>=1.24.3
+pydantic>=2.0.0
 
 # Error handling and logging
-loguru==0.7.2
+loguru>=0.7.2