diff --git a/book/launch_notebooks.md b/book/launch_notebooks.md
index c60af9cf3fcce71e719b6a30eadef58a2d06d591..f436201544e7c8364e984e4d390a3df8170620d6 100644
--- a/book/launch_notebooks.md
+++ b/book/launch_notebooks.md
@@ -17,7 +17,7 @@ conda activate pyimagecourse
 To start the Jupyter Notebook server, enter
 
 ```bash
-jupyter notebook
+jupyter-lab
 ```
 
 Jupyter Notebook will open in a browser window and you will see the course notebooks.