diff --git a/zuul.d/playbooks/pre.yml b/zuul.d/playbooks/pre.yml
index 96fc843be..c3f9e6d27 100644
--- a/zuul.d/playbooks/pre.yml
+++ b/zuul.d/playbooks/pre.yml
@@ -41,6 +41,8 @@
         virtualenv: "{{ ansible_user_dir }}/test-python"
         virtualenv_command: "{{ ensure_pip_virtualenv_command }}"
         virtualenv_site_packages: true
+        extra_args: >-
+          --constraint "{{ tripleo_ansible_project_path }}/ansible-requirements.txt"
 
     - name: Display test-python virtualenv package versions
       shell: |-