diff --git a/test-requirements.txt b/test-requirements.txt
index 2d921c76..db667730 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -2,4 +2,4 @@ mock; python_version < '3.3'
 parameterized
 pytest
 pytest-cov
-unittest2
+unittest2; python_version < '3.0'