diff --git a/setup.py b/setup.py
index d8f592756..8c5714d3b 100644
--- a/setup.py
+++ b/setup.py
@@ -49,5 +49,5 @@
         ]
     },
     setup_requires=[] + pytest_runner,
-    tests_require=['pytest', 'pytest-mock', 'asynctest'],
+    tests_require=['pytest', 'pytest-mock', 'pytest-xdist', 'asynctest'],
 )