diff --git a/setup.py b/setup.py
index 2d9c8debc6..6ed5377e56 100644
--- a/setup.py
+++ b/setup.py
@@ -45,4 +45,6 @@ setup(name='proteus',
             (major_version, minor_version, major_version, minor_version + 1)],
     },
     test_suite='proteus.tests',
+    tests_require=('trytond >= %s.%s, < %s.%s' %
+        (major_version, minor_version, major_version, minor_version + 1))
 )