diff --git a/docs/content/010-getting-started/03-tutorial/05-chapter-4-testing-your-api.mdx b/docs/content/010-getting-started/03-tutorial/05-chapter-4-testing-your-api.mdx
index fdd5857e..cb3556bc 100644
--- a/docs/content/010-getting-started/03-tutorial/05-chapter-4-testing-your-api.mdx
+++ b/docs/content/010-getting-started/03-tutorial/05-chapter-4-testing-your-api.mdx
@@ -25,7 +25,7 @@ During this tutorial, you'll use the [Jest testing framework](https://jestjs.io/
 First, install `jest` and accompanying tools.
 
 ```bash-symbol copy
-npm install --save-dev jest @types/jest ts-jest graphql-request get-port
+npm install --save-dev jest @types/jest ts-jest graphql-request get-port@5.1.1
 ```
 
 Then, configure jest and npm scripts in your `package.json`