Update app.py

app.py

@@ -6,12 +6,10 @@ import sys
 def install_packages():
     required_packages = [
         "langchain",
-        "langchain-community",
-        "huggingface_hub",
         "streamlit"
     ]
     for package in required_packages:
-        subprocess.check_call([sys.executable, "-m", "pip", "install", "-U", package])
+        subprocess.check_call([sys.executable, "-m", "pip", "install", package])
 
 # Run package installation
 install_packages()