Update requirements.txt

requirements.txt

@@ -1,22 +1,18 @@
-# requirements.txt
-
 # Telegram Bot Library
-python-telegram-bot[httpx]>=20.0,<22.0 # Widen range slightly if needed
-
-# HTTPX (explicitly, for Limits)
-httpx>=0.24.0,<0.28.0 # Specify a compatible range
+python-telegram-bot[httpx]>=21.0,<22.0 # PTB v21 is recommended
 
-# Web Framework (Core, needed by WSGIMiddleware)
-Flask>=2.0,<3.1
+# HTTPX (explicitly, for Limits and direct use)
+httpx>=0.25.0,<0.28.0
 
-# ASGI Framework (for Lifespan Management & Server)
-starlette>=0.25.0,<0.38.0 # Specify a compatible range
+# ASGI Framework (Core)
+starlette>=0.35.0,<0.38.0 # Ensure compatibility with PTB/HTTPX async nature
 
-# HTTP Requests Library (for external APIs)
-requests>=2.28,<2.33
+# HTTP Requests Library (for sync fallback or specific APIs if needed)
+# requests>=2.28,<2.33 # Keep if any sync code still uses it, otherwise optional
 
 # Web Scraping (HTML Parsing)
 beautifulsoup4>=4.11,<4.13
+lxml>=4.9.0,<6.0.0 # Often faster parser for BS4, good practice
 
 # YouTube Transcript Library
 youtube-transcript-api>=0.6,<0.7
@@ -25,11 +21,15 @@ youtube-transcript-api>=0.6,<0.7
 apify-client>=1.0,<1.3 # If using Apify
 
 # WSGI/ASGI Servers & Adapter
-gunicorn>=21.0,<23.0 # Check compatibility
-uvicorn[standard]>=0.20.0,<0.30.0 # Use standard for websockets etc. if needed later
-asgiref>=3.5,<3.9 # Dependency for ASGI
+gunicorn>=21.0,<23.0
+uvicorn[standard]>=0.27.0,<0.30.0 # Use standard for websockets, http/2 etc.
+
+# Async Utilities / Dependencies
+anyio>=3.6,<5.0 # Explicitly add anyio, often helps resolve conflicts
+asgiref>=3.5,<3.9
 
-# Other built-ins:
-# json, html, contextlib, logging, os, re, asyncio
+# Retry Logic
+tenacity>=8.0,<9.0
 
-tenacity>=8.0,<9.0
+# Optional: For better encoding detection if needed
+# chardet>=4.0.0,<6.0.0