diff --git a/README.md b/README.md
index 931bbd71085c295e099bcb82a5d82309ae5a1be7..bdd9fe6e1ac15d99900dd66dcfe1719dd23c958b 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,9 @@ $ conda create --name bob.paper.iccv2023_face_ti --file package-list.txt
 # activate the environment
 $ conda activate bob.paper.iccv2023_face_ti  
 
+# install torch (required version)
+$ pip install torch==1.13.0+cu117 torchvision==0.14.0+cu117 --extra-index-url https://download.pytorch.org/whl/cu117
+
 # install paper package
 $ pip install ./ --no-build-isolation  
 ```