diff --git a/README.md b/README.md
index c4f8369..a9c5aae 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ Install environment:
 conda create -n TensoRF python=3.8
 conda activate TensoRF
 pip install torch torchvision
-pip install tqdm scikit-image opencv-python configargparse lpips imageio-ffmpeg kornia lpips tensorboard
+pip install tqdm scikit-image opencv-python configargparse lpips imageio-ffmpeg kornia lpips tensorboard plyfile
 ```