diff --git a/playbooks/inventory/group_vars/hosts.yml b/playbooks/inventory/group_vars/hosts.yml
index 3772e0414b..084f66d4e3 100644
--- a/playbooks/inventory/group_vars/hosts.yml
+++ b/playbooks/inventory/group_vars/hosts.yml
@@ -271,7 +271,6 @@ openrc_os_domain_name: "Default"
 tempest_pip_instructions: >
   --isolated
   --pre
-  --allow-all-external
   --index-url {{ repo_pip_default_index }}
   --extra-index-url https://pypi.python.org/simple
   --trusted-host pypi.python.org