diff --git a/README.md b/README.md
index b567f578..a7e5e52b 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Once you have python installed, open Anaconda Prompt as Administrator and then i
 
 ![anaconda prompt](https://i.imgur.com/eKk2bbs.png)
 ```
-conda install -c conda-forge gdsfactory -y
+conda install -c conda-forge gdstk -y
 pip install ubcpdk --upgrade
 ```