diff --git a/tests/functional/centos/7/cluster/ceph-override.json b/tests/functional/centos/7/cluster/ceph-override.json
index 965e361f9..5a3999634 100644
--- a/tests/functional/centos/7/cluster/ceph-override.json
+++ b/tests/functional/centos/7/cluster/ceph-override.json
@@ -5,4 +5,5 @@
 			"osd_pool_default_size": 1
 		}
 	}
+  "ceph_docker_image_tag": "tag-stable-3.0-luminous-ubuntu-16.04"
 }