diff --git a/test/test_zcs.py b/test/test_zcs.py
index e4981d3..893999f 100644
--- a/test/test_zcs.py
+++ b/test/test_zcs.py
@@ -65,7 +65,7 @@ class TestCfgNode(unittest.TestCase):
         cfg = self.cfg.clone()
         yamlp = pathjoin(tmpboxx(), "test.yaml")
         cfg.dump(yamlp)
-        cfg_dict = yaml.load(open(yamlp))
+        cfg_dict = yaml.load(open(yamlp), yaml.Loader)
         cfgd = CfgNode(cfg_dict)
         self.assertTrue(str(cfg.dump()) == str(cfgd.dump()))