diff --git a/test/integration/targets/hcloud_server_facts/aliases b/test/integration/targets/hcloud_server_facts/aliases
index 18dc30b6c3..965a4decc1 100644
--- a/test/integration/targets/hcloud_server_facts/aliases
+++ b/test/integration/targets/hcloud_server_facts/aliases
@@ -1,2 +1,3 @@
 cloud/hcloud
 shippable/hcloud/group1
+unstable  # tests are unstable because they conflict when run concurrently