diff --git a/tox.ini b/tox.ini
index 6d4a7d2ee023ddf3a2cc5d2ac57168099140d44e..58bfbf90e0a2440116375af2dfed2db93a63baa1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,6 +11,7 @@ commands = flake8 sziszapangma tests
 setenv =
     PYTHONPATH = {toxinidir}
 deps =
+    -r{toxinidir}/requirements.txt
     -r{toxinidir}/requirements_dev.txt
 ; If you want to make tox run the tests with the same versions, create a
 ; requirements.txt with the pinned versions and uncomment the following line: