Update requirements.txt

requirements.txt

@@ -1,18 +1,18 @@
 # Core dependencies
 gradio[oauth,mcp]==6.8.0
-pandas==2.1.4
-numpy==1.26.3
-plotly==5.18.0
-openpyxl==3.1.2
+pandas>=2.2.3,<3
+numpy>=1.26.0
+plotly>=5.18.0
+openpyxl>=3.1.2
 
 # Real-time data
-yfinance==1.2.0
-requests==2.31.0
+yfinance>=1.2.0
+requests>=2.31.0
 
 # LangChain and AI
-langchain==0.1.0
-langchain-openai==0.0.2
-openai==1.8.0
+langchain>=0.1.0
+langchain-openai>=0.0.2
+openai>=1.8.0
 
 # Utilities
-python-dotenv==1.0.0
+python-dotenv>=1.0.0