diff --git a/python/fbprophet/tests/test_serialize.py b/python/fbprophet/tests/test_serialize.py
index 22ac341..841ecfa 100644
--- a/python/fbprophet/tests/test_serialize.py
+++ b/python/fbprophet/tests/test_serialize.py
@@ -41,7 +41,7 @@ class TestSerialize(TestCase):
         # Make sure json doesn't get too large in the future
         self.assertTrue(len(model_str) < 200000)
         z = json.loads(model_str)
-        self.assertEqual(z['__fbprophet_version'], '0.6')
+        self.assertEqual(z['__fbprophet_version'], '0.6.1.dev0')
 
         m2 = model_from_json(model_str)