diff --git a/tox.ini b/tox.ini
index 6c6727059..81b4bc052 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,6 @@ skipsdist = true
 [testenv]
 deps =
     .[test]
-    py{36,37}: pytest-asyncio
 setenv =
      PYTHONPATH = .:{envdir}
 commands =