Update app.py

app.py

@@ -5,7 +5,7 @@ credentials_kwargs={"aws_access_key_id": os.environ["ACCESS_KEY"],"aws_secret_ac
 # work around: https://discuss.huggingface.co/t/how-to-install-a-specific-version-of-gradio-in-spaces/13552
 os.system("pip uninstall -y gradio")
 os.system("pip install gradio==3.4.1")
-os.system("pip install packaging=21.3")
+os.system("pip install packaging==21.3")
 os.system(os.environ["DD_ADDONS"])
 
 import time