Update requirements.txt

requirements.txt

@@ -1,8 +1,8 @@
-gradio==4.19.2          # UI framework, pinned for stability
-requests==2.31.0        # HTTP requests for scraping
-beautifulsoup4==4.12.3  # HTML parsing
-sentence-transformers==2.5.0  # Retrieval embeddings (all-MiniLM-L6-v2)
-transformers==4.38.2    # QA model (DistilBERT)
-torch==2.2.1            # Required by transformers, CPU-only to save memory
-numpy==1.26.4           # Array operations for embeddings
+gradio==4.19.2
+requests==2.31.0
+beautifulsoup4==4.12.3
+sentence-transformers==2.5.0
+transformers==4.36.2  # Downgraded to fix compatibility with optimum 1.14.0
+torch==2.2.1
+numpy==1.26.4
 optimum[onnxruntime]==1.14.0