1diff --git a/test/test_zcs.py b/test/test_zcs.py
2index e4981d3..893999f 100644
3--- a/test/test_zcs.py
4+++ b/test/test_zcs.py
5@@ -65,7 +65,7 @@ class TestCfgNode(unittest.TestCase):
6 cfg = self.cfg.clone()
7 yamlp = pathjoin(tmpboxx(), "test.yaml")
8 cfg.dump(yamlp)
9- cfg_dict = yaml.load(open(yamlp))
10+ cfg_dict = yaml.load(open(yamlp), yaml.Loader)
11 cfgd = CfgNode(cfg_dict)
12 self.assertTrue(str(cfg.dump()) == str(cfgd.dump()))
13