diff --git a/docs/how-to-work-on-the-docs-theme.md b/docs/how-to-work-on-the-docs-theme.md
index 98fc655cab5..4184df847a4 100644
--- a/docs/how-to-work-on-the-docs-theme.md
+++ b/docs/how-to-work-on-the-docs-theme.md
@@ -76,4 +76,4 @@ npm run docs:serve
 npm run develop
 ```
 
-> The documentation site should be available at <http://localhost:3200>
+> The documentation site should be available at <http://localhost:3400>