diff --git a/tox.ini b/tox.ini
index f805e006b..1c87d1a6c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,8 +22,7 @@ basepython =
 deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/misc/requirements/requirements-tests.txt
-    pyqt: PyQt5
-    pyqt56: PyQt5==5.6
+    pyqt: -r{toxinidir}/misc/requirements/requirements-pyqt.txt
     pyqt571: PyQt5==5.7.1
     pyqt58: PyQt5==5.8.2
     pyqt59: PyQt5==5.9.2