Update requirements.txt

requirements.txt

@@ -1,6 +1,7 @@
-torch>=2.1.2
-transformers>=4.40.0
-gradio>=4.24.0
-accelerate>=0.29.0
-bitsandbytes>=0.43.0
-flash-attn>=2.5.6  # Needed for Phi-3 optimization
+--extra-index-url https://download.pytorch.org/whl/cu121
+torch==2.1.2+cu121
+flash-attn==2.7.3.post1
+transformers==4.42.0
+gradio==4.29.0
+accelerate==0.30.0
+bitsandbytes==0.43.1