diff --git a/tests/ansible/integration/action/synchronize.yml b/tests/ansible/integration/action/synchronize.yml
index 25f86d6d..3e81ce6a 100644
--- a/tests/ansible/integration/action/synchronize.yml
+++ b/tests/ansible/integration/action/synchronize.yml
@@ -7,6 +7,10 @@
     ansible_user: mitogen__has_sudo_pubkey
     ansible_become_pass: has_sudo_pubkey_password
     ansible_ssh_private_key_file: /tmp/synchronize-action-key
+
+    # https://github.com/ansible/ansible/issues/56629
+    ansible_ssh_pass: ''
+    ansible_password: ''
   tasks:
     # must copy git file to set proper file mode.
     - copy: