diff --git a/src/pybind/mgr/dashboard/requirements.txt b/src/pybind/mgr/dashboard/requirements.txt
index 24bb3d3864d..70dd62c4be8 100644
--- a/src/pybind/mgr/dashboard/requirements.txt
+++ b/src/pybind/mgr/dashboard/requirements.txt
@@ -11,3 +11,4 @@ pyyaml
 natsort
 setuptools
 jsonpatch
+lxml==4.8.0  # to fix https://github.com/xmlsec/python-xmlsec/issues/320