Update app.py

app.py

@@ -8,7 +8,7 @@ import IPython
 import sys
 import subprocess
 
-subprocess.check_call([sys.executable, "-m", "pip", "install", "git+https://github.com/osanseviero/tortoise-tts.git"])
+subprocess.check_call([sys.executable, "-m", "pip", "install", "--upgrade", "--force-reinstall", "git+https://github.com/osanseviero/tortoise-tts.git"])
 
 # entmax could not be installed at same time as torch
 subprocess.check_call([sys.executable, "-m", "pip", "install", "entmax"])