diff --git a/docs/intro.md b/docs/intro.md
index 92772bae..1b68eb4a 100644
--- a/docs/intro.md
+++ b/docs/intro.md
@@ -133,7 +133,7 @@ For example, let's install the [sphinx-design](https://github.com/executablebook
 First, install `sphinx-design`:
 
 ```shell
-pip install sphinxcontrib-mermaid
+pip install sphinx-design
 ```
 
 Next, add it to your list of extensions in `conf.py`: