diff --git a/tests/test_basic.py b/tests/test_basic.py
index 74a5b56..4f66529 100644
--- a/tests/test_basic.py
+++ b/tests/test_basic.py
@@ -310,7 +310,7 @@ def test_properties(self):
             "priority": 1,
             "correlation_id": 'd',
             "reply_to": 'e',
-            "expiration": 'f',
+            "expiration": '1000000',
             "message_id": 'g',
             "timestamp": 1,
             "type_": 'h',