diff --git a/tox.ini b/tox.ini
index 2c3c362..771994b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,17 +7,19 @@ deps = .
 [testenv:flake8]
 deps = flake8
 commands =
-     flake8 kibicara tests
+    flake8 kibicara tests
 
 [testenv:black]
 deps = black
 commands =
-     black -S --check --diff kibicara tests
+    black -S --check --diff kibicara tests
 
 [testenv:pytest]
-deps = pytest
+deps =
+    pytest
+    pytest-asyncio
 commands =
-     pytest
+    pytest
 
 [flake8]
 max_line_length = 88