Update Dockerfile

Dockerfile

@@ -5,8 +5,8 @@ RUN apt-get update && apt-get install -y ffmpeg
 WORKDIR /app
 
 COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt --upgrade
 
 COPY . .
 
-CMD ["gunicorn", "--bind", "0.0.0.0:8080", "--worker-class", "uvicorn.workers.UvicornWorker", "app:app"]
+CMD ["gunicorn", "--bind", "0.0.0.0:8080", "app:app"]