Add missing dep.
@@ -225,7 +225,9 @@ setenv =
AZURE_TENANT_ID=982317c6-fb7e-4e92-abcd-196557e41c5b
AZURE_SUBSCRIPTION_ID=d6d608a6-e0c8-42ae-a548-2f41793709d2
-deps = -r{toxinidir}/integration/storage/requirements.txt
+deps =
+ pytest==5.3.2
+ -r{toxinidir}/integration/storage/requirements.txt
commands = pytest -vv -s --durations=10 integration/storage
