diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5d06ccf2b..70ceeb543 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -25,7 +25,13 @@ From a command-line terminal (e.g. from Vertex Workbench or locally), install
 the code analysis tools:
 
 ```shell
-pip install --user -U nbqa black flake8 isort pyupgrade git+https://github.com/tensorflow/docs
+pip3 install --user -U nbqa black flake8 isort pyupgrade git+https://github.com/tensorflow/docs
+```
+
+You'll likely need to add the directory where these were installed to your PATH:
+
+```shell
+export PATH=“$HOME/.local/bin:$PATH"
 ```
 
 Then, set an environment variable for your notebook (or directory):