Update app.py

app.py

@@ -6,7 +6,7 @@ print("torch: ", TORCH_VERSION, "; cuda: ", CUDA_VERSION)
 # Install detectron2 that matches the above pytorch version
 # See https://detectron2.readthedocs.io/tutorials/install.html for instructions
 os.system(f'pip install detectron2 -f https://dl.fbaipublicfiles.com/detectron2/wheels/{CUDA_VERSION}/torch{TORCH_VERSION}/index.html')
-os.system("pip install Jinja2")
+os.system("pip install jinja2")
 os.system("pip install git+https://github.com/cocodataset/panopticapi.git")
 
 # Imports