diff --git a/tox.ini b/tox.ini
index 8a1738e2..90491c3c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -89,6 +89,7 @@ deps =
     pytest
     pytest-asyncio
     pytest-operator
+    macaroonbakery!=1.3.3
 commands =
     pytest -v --tb native --log-cli-level=INFO -s {toxinidir}/tests/integration {posargs}