diff --git a/diskimage_builder/tests/test_elements.py b/diskimage_builder/tests/test_elements.py
index 7978acda3..e8c685979 100644
--- a/diskimage_builder/tests/test_elements.py
+++ b/diskimage_builder/tests/test_elements.py
@@ -16,7 +16,7 @@ import os
 import sys
 
 
-class StubPackage:
+class StubPackage(object):
     pass
 
 
diff --git a/test-requirements.txt b/test-requirements.txt
index d8750285a..0eb353775 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-hacking>=0.9.2,<0.10
+hacking>=0.10.0,<0.11
 
 discover
 oslotest>=1.2.0  # Apache-2.0