diff --git a/requirements.txt b/requirements.txt
index 991628a..2b5ec51 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 importlib-resources
-ops >= 1.2.0
+ops >= 1.2.0, <= 1.5.2
 tenacity
 git+https://github.com/openstack/charms.ceph#egg=charms_ceph
 git+https://opendev.org/openstack/charm-ops-openstack#egg=ops_openstack