diff --git a/setup.py b/setup.py
index 6b38241..c0a31d8 100644
--- a/setup.py
+++ b/setup.py
@@ -30,6 +30,7 @@ setup(
         "pytest>=2.9.2",
         "testfixtures>=4.10.0",
         "vcrpy>=1.9.0",
+        "mock>=2.0.0",
     ],
     entry_points=dict(console_scripts=['onedns = onedns.cli:main']),
     zip_safe=False