diff --git a/tox.ini b/tox.ini
index be99ccc..b9c14bb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -108,6 +108,7 @@ deps =
     pytest
     pytest-cov
     pytest-operator
+    websockets<14.0 # https://github.com/juju/python-libjuju/issues/1184
     juju
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/tests/integration/requirements.txt