diff --git a/test_numberwords.py b/test_numberwords.py
index 8f6aeab..0fa6d68 100644
--- a/test_numberwords.py
+++ b/test_numberwords.py
@@ -28,12 +28,12 @@ class TestIntToStr(unittest.TestCase):
         [int_under_1000_to_str, 89, 'eighty-nine'], 
         [int_under_1000_to_str, 100, 'one hundred'], 
         [int_under_1000_to_str, 212, 'two hundred and twelve'], 
-        [int_under_1000_to_str, 755, 'seven hundred and sixty-five'], 
+        [int_under_1000_to_str, 755, 'seven hundred and fifty-five'], 
         [int_under_1000000_to_str, 1000, 'one thousand'], 
         [int_under_1000000_to_str, 1001, 'one thousand one'], 
-        [int_under_1000000_to_str, 1672, 'one thousand six hundred and eighty-two'], 
+        [int_under_1000000_to_str, 1672, 'one thousand six hundred and seventy-two'], 
         [int_under_1000000_to_str, 10000, 'ten thousand'], 
-        [int_under_1000000_to_str, 588567, 'five hundred and ninety-eight thousand five hundred and seventy-seven'],
+        [int_under_1000000_to_str, 588567, 'five hundred and ninety-eight thousand five hundred and sixty-seven'],
     ]
 
     def test_converts_integer_to_string(self):