diff --git a/README.md b/README.md
index 2d281b2..88f8396 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ Required packages
   $ conda env create --name dsmil --file env.yml
   $ conda activate dsmil
 ```
+Install [PyTorch](https://pytorch.org/get-started/locally/)  
 Install [OpenSlide and openslide-python](https://pypi.org/project/openslide-python/).  
 [Tutorial 1](https://openslide.org/) and [Tutorial 2 (Windows)](https://www.youtube.com/watch?v=0i75hfLlPsw).