diff --git a/lib/galaxy/model/__init__.py b/lib/galaxy/model/__init__.py
index 6c79d51fccb6..0ee9bc9bc8ec 100644
--- a/lib/galaxy/model/__init__.py
+++ b/lib/galaxy/model/__init__.py
@@ -8293,6 +8293,7 @@ def cancel_invocation_steps(self):
             .filter(WorkflowInvocationStep.workflow_invocation_id == self.id)
             .filter(~Job.state.in_(Job.finished_states))
             .with_for_update()
+            .limit(1)
             .scalar_subquery()
         )
         sa_session.execute(update(Job.table).where(Job.id == job_subq).values({"state": Job.states.DELETING}))