diff --git a/README.md b/README.md
index 1cbe3e9..26aed6e 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,11 @@ diffvg is a differentiable rasterizer for 2D vector graphics. See the webpage fo
 # Install
 ```
 git submodule update --init --recursive
-conda install pytorch torchvision -c pytorch
-conda install numpy
-conda install scikit-image
+conda install -y pytorch torchvision -c pytorch
+conda install -y numpy
+conda install -y scikit-image
+conda install -y -c anaconda cmake
+conda install -y -c conda-forge ffmpeg
 pip install svgwrite
 pip install svgpathtools
 pip install cssutils