diff --git a/roles/validate-tempest/defaults/main.yml b/roles/validate-tempest/defaults/main.yml
index 2b2890fbf..54ce035a0 100644
--- a/roles/validate-tempest/defaults/main.yml
+++ b/roles/validate-tempest/defaults/main.yml
@@ -104,4 +104,4 @@ python_package_prefix: "python"
 
 # Headless Chrome configuration
 tempest_use_headless_chrome: false
-tempest_headless_chrome_port: 9999
+tempest_headless_chrome_port: 4444